Chemistry-
General
Easy

Question

 (A) and (B) are:

The correct answer is:

Related Questions to study

General
maths-

A = open square brackets table row 1 2 2 row 2 1 2 row 2 2 1 end table close square brackets, then A3 – 4A2 – 6A is equal to -

A = open square brackets table row 1 2 2 row 2 1 2 row 2 2 1 end table close square brackets, then A3 – 4A2 – 6A is equal to -

maths-General
General
maths-

Inverse of the matrix open square brackets table row 3 cell – 2 end cell cell – 1 end cell row cell – 4 end cell 1 cell – 1 end cell row 2 0 1 end table close square brackets is

Inverse of the matrix open square brackets table row 3 cell – 2 end cell cell – 1 end cell row cell – 4 end cell 1 cell – 1 end cell row 2 0 1 end table close square brackets is

maths-General
General
maths-

If A = open square brackets table row 2 cell – 1 end cell row cell – 1 end cell 2 end table close square brackets and A2 – 4A – n I = 0, then n is equal to

If A = open square brackets table row 2 cell – 1 end cell row cell – 1 end cell 2 end table close square brackets and A2 – 4A – n I = 0, then n is equal to

maths-General
parallel
General
maths-

The value of x for which the matrix product open square brackets table attributes columnalign center center center columnspacing 1em end attributes row 2 0 7 row 0 1 0 row 1 cell negative 2 end cell 1 end table close square brackets open square brackets table row cell – x end cell cell 14 x end cell cell 7 x end cell row 0 1 0 row x cell – 4 x end cell cell – 2 x end cell end table close square bracketsequal an identity matrix is :

The value of x for which the matrix product open square brackets table attributes columnalign center center center columnspacing 1em end attributes row 2 0 7 row 0 1 0 row 1 cell negative 2 end cell 1 end table close square brackets open square brackets table row cell – x end cell cell 14 x end cell cell 7 x end cell row 0 1 0 row x cell – 4 x end cell cell – 2 x end cell end table close square bracketsequal an identity matrix is :

maths-General
General
maths-

If A = open square brackets table row 1 2 row 3 5 end table close square brackets, then A–1 is equal to :

If A = open square brackets table row 1 2 row 3 5 end table close square brackets, then A–1 is equal to :

maths-General
General
maths-

If A is a singular matrix, then adj A is :

If A is a singular matrix, then adj A is :

maths-General
parallel
General
Maths-

Statement - I The value of x for which (sin x + cos x)1 + sin 2x = 2, when 0 ≤ x ≤ , is straight pi divided by 4 only.

Statement - II The maximum value of sin x + cos x occurs when x =straight pi divided by 4

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason.

Statement - I The value of x for which (sin x + cos x)1 + sin 2x = 2, when 0 ≤ x ≤ , is straight pi divided by 4 only.

Statement - II The maximum value of sin x + cos x occurs when x =straight pi divided by 4

Maths-General

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason.

General
maths-

If [1 2 3 ]A = [4 5], the order of matrix A is :

If [1 2 3 ]A = [4 5], the order of matrix A is :

maths-General
General
maths-

Let A and B be 3 × 3 matrices, then AB = O implies:

Let A and B be 3 × 3 matrices, then AB = O implies:

maths-General
parallel
General
maths-

If A = open square brackets table row 1 2 row 3 cell negative 5 end cell end table close square brackets, B = open square brackets table row 1 0 row 0 2 end table close square brackets and X is a matrix such that A = B X. Then X equals

If A = open square brackets table row 1 2 row 3 cell negative 5 end cell end table close square brackets, B = open square brackets table row 1 0 row 0 2 end table close square brackets and X is a matrix such that A = B X. Then X equals

maths-General
General
maths-

If k open square brackets table row cell negative 1 end cell 2 2 row 2 cell negative 1 end cell 2 row 2 2 cell negative 1 end cell end table close square brackets is an orthogonal matrix then k is equal to

If k open square brackets table row cell negative 1 end cell 2 2 row 2 cell negative 1 end cell 2 row 2 2 cell negative 1 end cell end table close square brackets is an orthogonal matrix then k is equal to

maths-General
General
maths-

If f(α) = open square brackets table row cell cos invisible function application alpha end cell cell sin invisible function application alpha end cell row cell negative sin invisible function application alpha end cell cell cos invisible function application alpha end cell end table close square brackets and alpha comma beta comma gamma are angles of triangle then f(alpha). f(beta).f (gamma) =

If f(α) = open square brackets table row cell cos invisible function application alpha end cell cell sin invisible function application alpha end cell row cell negative sin invisible function application alpha end cell cell cos invisible function application alpha end cell end table close square brackets and alpha comma beta comma gamma are angles of triangle then f(alpha). f(beta).f (gamma) =

maths-General
parallel
General
maths-

If A is idempotent and A + B = I, then which of the following true?

If A is idempotent and A + B = I, then which of the following true?

maths-General
General
chemistry-

Which of the following is not a disporportionation reaction?

Which of the following is not a disporportionation reaction?

chemistry-General
General
maths-

If f(alpha) = open square brackets table row cell cos invisible function application alpha end cell cell negative sin invisible function application alpha end cell 0 row cell sin invisible function application alpha end cell cell cos invisible function application alpha end cell 0 row 0 0 1 end table close square brackets, then open square brackets f left parenthesis alpha right parenthesis close square brackets to the power of negative 1 end exponent =

If f(alpha) = open square brackets table row cell cos invisible function application alpha end cell cell negative sin invisible function application alpha end cell 0 row cell sin invisible function application alpha end cell cell cos invisible function application alpha end cell 0 row 0 0 1 end table close square brackets, then open square brackets f left parenthesis alpha right parenthesis close square brackets to the power of negative 1 end exponent =

maths-General
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