Subject: Maths, asked on 21/5/18

## Ans: option (a).  But ?x^2 = mod x. Then, how can it be negative.  It should be option c, isn't it? Q67. The value of  , is                     (a) – 2                        (b) $\sqrt{-4}$                   (c) 2                  (d) none of these                                                                                                            [CEF (Delhi) 2002]

Subject: Maths, asked on 1/5/18

## please answer fast. Q.24. Solve : (a > 0)

Subject: Maths, asked on 18/4/18

## Solve this: 171.  The total number of ways of selecting six coins out of 20 one rupee coins, 10 fifty paise coins and 7 twenty five paise coins is

Subject: Maths, asked on 14/4/18

## If the sum of the coefficient in the expansion of ${\left(1-3x+10{x}^{2}\right)}^{n}$ is a and if the sum of the coefficients in the expansion of (1 + x2)n is b, then : (1) a = 3b              (2) a = b3              (c) b = a3                (4) None of these

Subject: Maths, asked on 14/4/18

## If the last term in the binomial expansion of  , then the 5th term from the beginning is  (1) 210 (2) 420 (3) 105 (4) none of these

Subject: Maths, asked on 10/4/18

## Please solve last 2 question in detail. Q.13. Show that ${9}^{n+1}-8n-9$ is divisible by 64, whenever n is a positive integer. Q.14. Prove that .

Subject: Maths, asked on 5/4/18
Subject: Maths, asked on 5/4/18

## Q5. The degree of expression  ${\left[x+{\left({x}^{3}-1\right)}^{\frac{1}{2}}\right]}^{5}+{\left[x-{\left({x}^{3}-1\right)}^{\frac{1}{2}}\right]}^{5}$ is (A) 5 (B) 6 (C) 7 (D) 8

Subject: Maths, asked on 4/4/18

## 21?

Subject: Maths, asked on 4/4/18

## 20?  20. If the coefficient of 4th term in the expansion of   a) 2,7              b) 5,8                   c) 3,6                                d) 2,6 20 ?

Subject: Maths, asked on 26/3/18
Subject: Maths, asked on 23/3/18

## Plz ans soon.. 36. Verify by the method of contradiction that $\sqrt{17}$ is irrational

Subject: Maths, asked on 18/3/18

## Please answer 80 th question 80.  The value of   (1)  0                                            (2)  5 (3)  7                                            (4)  11

Subject: Maths, asked on 13/3/18

## Q. If P be the sum of odd terms and Q that of even terms in the expansion of${\left(x+a\right)}^{n}$, prove  that

Subject: Maths, asked on 6/3/18

## Solve ques(find theseventh ,......)

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