Maths-
General
Easy

Question

Coefficient of x to the power of r is 1 plus left parenthesis 1 plus x right parenthesis plus left parenthesis 1 plus x right parenthesis squared plushorizontal ellipsis plus left parenthesis 1 plus x right parenthesis to the power of n is

  1. left parenthesis n plus 3 right parenthesis subscript left parenthesis C subscript r right parenthesis    
  2. left parenthesis n plus 1 right parenthesis subscript C subscript r plus 1 end subscript end subscript
     
  3. n subscript C subscript r end subscript  
  4. left parenthesis n plus 2 right parenthesis subscript c subscript r end subscript

The correct answer is: left parenthesis n plus 1 right parenthesis subscript C subscript r plus 1 end subscript end subscript


    Because of the partial positive charge on adjacent N-atoms there is a repulsion along N  N bond, hence N  N bond distance become higher.

    Related Questions to study

    General
    maths-

    If a,b,c,d are consective binomial coefficients of left parenthesis 1 plus x right parenthesis to the power of n then fraction numerator a plus b over denominator a end fraction comma fraction numerator b plus c over denominator b end fraction comma fraction numerator c plus d over denominator c end fraction are is

    If a,b,c,d are consective binomial coefficients of left parenthesis 1 plus x right parenthesis to the power of n then fraction numerator a plus b over denominator a end fraction comma fraction numerator b plus c over denominator b end fraction comma fraction numerator c plus d over denominator c end fraction are is

    maths-General
    General
    maths-

    No of terms whose value depend on 'x' is left parenthesis x squared minus 2 plus 1 divided by x squared right parenthesis to the power of n is

    No of terms whose value depend on 'x' is left parenthesis x squared minus 2 plus 1 divided by x squared right parenthesis to the power of n is

    maths-General
    General
    Maths-

    If T subscript 0 comma T subscript 1 comma T subscript 2 comma horizontal ellipsis. T subscript n represent the terms is left parenthesis x plus a right parenthesis to the power of n then left parenthesis T subscript 0 minus T subscript 2 plus T subscript 4 minus T subscript 6 plus midline horizontal ellipsis right parenthesis squared plusleft parenthesis T subscript 1 minus T subscript 3 plus T subscript 5 minus horizontal ellipsis right parenthesis squared  is

    If T subscript 0 comma T subscript 1 comma T subscript 2 comma horizontal ellipsis. T subscript n represent the terms is left parenthesis x plus a right parenthesis to the power of n then left parenthesis T subscript 0 minus T subscript 2 plus T subscript 4 minus T subscript 6 plus midline horizontal ellipsis right parenthesis squared plusleft parenthesis T subscript 1 minus T subscript 3 plus T subscript 5 minus horizontal ellipsis right parenthesis squared  is

    Maths-General
    parallel
    General
    Maths-

    Let ' O be the origin and A be a point on the curve y to the power of 2 end exponent equals 4 x then locus of the midpoint of OA is

    Let ' O be the origin and A be a point on the curve y to the power of 2 end exponent equals 4 x then locus of the midpoint of OA is

    Maths-General
    General
    biology

    Which one is absent in free state during origin of life ?

    Which one is absent in free state during origin of life ?

    biologyGeneral
    General
    Maths-

    Two different packs of 52 cards are shuffled together. The number of ways in which a man can be dealt 26 cards so that he does not get two cards of the same suit and same denomination is-

    Two different packs of 52 cards are shuffled together. The number of ways in which a man can be dealt 26 cards so that he does not get two cards of the same suit and same denomination is-

    Maths-General
    parallel
    General
    Maths-

    In how many ways can 6 prizes be distributed equally among 3 persons?

    In combinatorics, the rule of sum or addition principle states that it is the idea that if the complete A ways of doing something and B ways of doing something and B ways of doing something, we cannot do at the same time, then there are (A + B) ways of choosing one of the actions. In this question, there is a possibility that the student might miss considering all the cases. They may forget to consider case 2 and get a different answer.

    In how many ways can 6 prizes be distributed equally among 3 persons?

    Maths-General

    In combinatorics, the rule of sum or addition principle states that it is the idea that if the complete A ways of doing something and B ways of doing something and B ways of doing something, we cannot do at the same time, then there are (A + B) ways of choosing one of the actions. In this question, there is a possibility that the student might miss considering all the cases. They may forget to consider case 2 and get a different answer.

    General
    Maths-

    The number of ways in which mn students can be distributed equally among m sections is-

    While solving this question, the possible mistake one can make is by always choosing n students for all sections from mn students which is totally wrong because at a time one student can only be in 1 section. So, if n students are selected for 1 section then in the second section, we will choose from (mn – n).

    The number of ways in which mn students can be distributed equally among m sections is-

    Maths-General

    While solving this question, the possible mistake one can make is by always choosing n students for all sections from mn students which is totally wrong because at a time one student can only be in 1 section. So, if n students are selected for 1 section then in the second section, we will choose from (mn – n).

    General
    Maths-

    The number of ways in which 20 volunteers can be divided into groups of 4, 7 and 9 persons is-

    The number of ways in which 20 volunteers can be divided into groups of 4, 7 and 9 persons is-

    Maths-General
    parallel
    General
    Maths-

    The number of ways to make 5 heaps of 3books each from 15 different books is-

    In these type of questions, it is to be always remembered that separate approaches need to be adopted for distinct and identical objects. Here, the books were distinct or different.

    The number of ways to make 5 heaps of 3books each from 15 different books is-

    Maths-General

    In these type of questions, it is to be always remembered that separate approaches need to be adopted for distinct and identical objects. Here, the books were distinct or different.

    General
    Maths-

    The line among the following that touches the y to the power of 2 end exponent equals 4 a x is

    The line among the following that touches the y to the power of 2 end exponent equals 4 a x is

    Maths-General
    General
    Maths-

    The number of necklaces which can be formed by selecting 4 beads out of 6 beads of different coloured glasses and 4 beads out of 5 beads of different metal, is-

    The number of necklaces which can be formed by selecting 4 beads out of 6 beads of different coloured glasses and 4 beads out of 5 beads of different metal, is-

    Maths-General
    parallel
    General
    Maths-

    The number of ways in which 20 persons can sit on 8 chairs round a circular table is-

    The number of ways in which 20 persons can sit on 8 chairs round a circular table is-

    Maths-General
    General
    Maths-

    The number of numbers can be formed by taking any 2 digits from digits 6,7,8,9 and 3 digits from 1, 2, 3, 4, 5 is -

    The number of numbers can be formed by taking any 2 digits from digits 6,7,8,9 and 3 digits from 1, 2, 3, 4, 5 is -

    Maths-General
    General
    Maths-

    How many numbers consisting of 5 digits can be formed in which the digits 3,4 and 7 are used only once and the digit 5 is used twice-

    How many numbers consisting of 5 digits can be formed in which the digits 3,4 and 7 are used only once and the digit 5 is used twice-

    Maths-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.