Maths-
General
Easy

Question

If  are four angles then sin invisible function application left parenthesis A minus B right parenthesis times cos invisible function application left parenthesis A plus B right parenthesis plus sin invisible function application left parenthesis B minus C right parenthesis cos invisible function application left parenthesis B plus C right parenthesis plus sin invisible function application left parenthesis C minus D right parenthesis.cos invisible function application left parenthesis C plus D right parenthesis plus sin invisible function application left parenthesis D minus A right parenthesis times cos invisible function application left parenthesis D plus A right parenthesis equals

  1. 0
  2. 1
  3. 4 sin invisible function application A sin invisible function application B sin invisible function application C sin invisible function application D
  4. 4 cos invisible function application A cos invisible function application B cos invisible function application C cos invisible function application D

The correct answer is: 0

Book A Free Demo

+91

Grade*

Related Questions to study

General
maths-

If tan space theta subscript 1 comma tan space theta subscript 2 comma tan space theta subscript 3 and tan space theta subscript 4 are the roots of the equation x to the power of 4 minus x cubed sin space 2 beta plus x squared cos space 2 beta minus x cos space beta minus sin space beta equals 0  then tan space open parentheses theta subscript 1 plus theta subscript 2 plus theta subscript 3 plus theta subscript 4 close parentheses is equal to

If tan space theta subscript 1 comma tan space theta subscript 2 comma tan space theta subscript 3 and tan space theta subscript 4 are the roots of the equation x to the power of 4 minus x cubed sin space 2 beta plus x squared cos space 2 beta minus x cos space beta minus sin space beta equals 0  then tan space open parentheses theta subscript 1 plus theta subscript 2 plus theta subscript 3 plus theta subscript 4 close parentheses is equal to

maths-General
General
chemistry-

Formula of the following silicate anion is

Charge
Two S i to the power of 4 plus end exponent plus 8
Seven O to the power of 2 minus end exponent minus 14
S i subscript 2 end subscript O subscript 7 end subscript superscript 6 minus end superscript

Formula of the following silicate anion is

chemistry-General
Charge
Two S i to the power of 4 plus end exponent plus 8
Seven O to the power of 2 minus end exponent minus 14
S i subscript 2 end subscript O subscript 7 end subscript superscript 6 minus end superscript
General
chemistry-

Sulphide mineral +CN to the power of minus rightwards arrow with straight O subscript 2 on top open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus 2 open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus plus Zn not stretchy rightwards arrow open square brackets Zn left parenthesis CN right parenthesis subscript 4 close square brackets to the power of 2 minus end exponent plus 2 M M

 can be

Sulphide mineral +CN to the power of minus rightwards arrow with straight O subscript 2 on top open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus 2 open square brackets M left parenthesis CN right parenthesis subscript 2 close square brackets to the power of minus plus Zn not stretchy rightwards arrow open square brackets Zn left parenthesis CN right parenthesis subscript 4 close square brackets to the power of 2 minus end exponent plus 2 M M

 can be

chemistry-General
General
maths-

The adjoining figure gives the road plan of lanes connecting two parallel roads AB and FJ Aman walking on the road AB takes a turn at random to reach the road FJ It is known that he reaches the road FJ from O by taking a straight line The chance that he moves on a straight line from the road AB to the road FJ is.

The adjoining figure gives the road plan of lanes connecting two parallel roads AB and FJ Aman walking on the road AB takes a turn at random to reach the road FJ It is known that he reaches the road FJ from O by taking a straight line The chance that he moves on a straight line from the road AB to the road FJ is.

maths-General
General
maths-

The value of cos space y cos space left parenthesis pi divided by 2 minus x right parenthesis minus cos space left parenthesis pi divided by 2 minus y right parenthesis cos space x plus sin space y cos space left parenthesis pi divided by 2 minus x right parenthesis plus cos space x sin space left parenthesis pi divided by 2 minus y right parenthesis is Zero if

The value of cos space y cos space left parenthesis pi divided by 2 minus x right parenthesis minus cos space left parenthesis pi divided by 2 minus y right parenthesis cos space x plus sin space y cos space left parenthesis pi divided by 2 minus x right parenthesis plus cos space x sin space left parenthesis pi divided by 2 minus y right parenthesis is Zero if

maths-General
General
maths-

If sin space pi over 18 sin space fraction numerator 5 pi over denominator 18 end fraction sin space fraction numerator 7 pi over denominator 18 end fraction =

If sin space pi over 18 sin space fraction numerator 5 pi over denominator 18 end fraction sin space fraction numerator 7 pi over denominator 18 end fraction =

maths-General
General
maths-

The value of sin invisible function application 47 to the power of ring operator plus sin invisible function application 61 to the power of ring operator minus sin invisible function application 11 to the power of ring operator minus sin invisible function application 25 to the power of ring operatoris

The value of sin invisible function application 47 to the power of ring operator plus sin invisible function application 61 to the power of ring operator minus sin invisible function application 11 to the power of ring operator minus sin invisible function application 25 to the power of ring operatoris

maths-General
General
maths-

If ABC is a triangle and tan space A over 2 comma tan space B over 2 comma tan space C over 2 are H.P then the minimum value of  cot space B over 2 is equal to

If ABC is a triangle and tan space A over 2 comma tan space B over 2 comma tan space C over 2 are H.P then the minimum value of  cot space B over 2 is equal to

maths-General
General
maths-

If theta equals pi over 2 to the power of n plus 1 end exponent then cos space theta cos space 2 theta cos space 2 squared theta horizontal ellipsis cos space 2 to the power of n minus 1 end exponent theta is equal to

If theta equals pi over 2 to the power of n plus 1 end exponent then cos space theta cos space 2 theta cos space 2 squared theta horizontal ellipsis cos space 2 to the power of n minus 1 end exponent theta is equal to

maths-General
General
maths-

If A,B,C re in A.P and B equals pi over 4 then tan space A tan space B tan C =

If A,B,C re in A.P and B equals pi over 4 then tan space A tan space B tan C =

maths-General
General
maths-

If alpha comma beta comma gamma do not differ by a multiple of straight pi and iffraction numerator cos space left parenthesis alpha plus theta right parenthesis over denominator sin space left parenthesis beta plus gamma right parenthesis end fraction equals fraction numerator cos begin display style space end style left parenthesis beta plus theta right parenthesis over denominator sin begin display style space end style left parenthesis gamma plus alpha right parenthesis end fraction equals fraction numerator cos begin display style space end style left parenthesis gamma plus theta right parenthesis over denominator sin begin display style space end style left parenthesis alpha plus beta right parenthesis end fraction equals k Then k equals

If alpha comma beta comma gamma do not differ by a multiple of straight pi and iffraction numerator cos space left parenthesis alpha plus theta right parenthesis over denominator sin space left parenthesis beta plus gamma right parenthesis end fraction equals fraction numerator cos begin display style space end style left parenthesis beta plus theta right parenthesis over denominator sin begin display style space end style left parenthesis gamma plus alpha right parenthesis end fraction equals fraction numerator cos begin display style space end style left parenthesis gamma plus theta right parenthesis over denominator sin begin display style space end style left parenthesis alpha plus beta right parenthesis end fraction equals k Then k equals

maths-General
General
maths-

From the figure AOC=

From the figure AOC=

maths-General
General
maths-

In capital deltaABC, D,E,F are the midpoints of sides BC, CA and AB respectively then ar open parentheses B D E F close parentheses equals

In capital deltaABC, D,E,F are the midpoints of sides BC, CA and AB respectively then ar open parentheses B D E F close parentheses equals

maths-General
General
biology

When the solute has been added in the solution, then following observation can be made ?

When the solute has been added in the solution, then following observation can be made ?

biologyGeneral
General
chemistry-

B can be obtained from halide by van Arkel method. This involves reaction

B can be obtained from halide by van Arkel method. This involves reaction

chemistry-General