Subject: Maths, asked on 10/2/14

## Using properties of determinants prove that -(b+c)2....a2........a2b2.....(c+a)2......b2 =2abc(a+b+c)3c2.....c2.......(a+b)2In this ques.. i just want to know tht after applying C1→ C1-C2, C2→ C2-C3in this ques how can i take (a+b+c) common from C1 and C2.

Subject: Maths, asked on 8/4/19

## What is, tan inverse (tan(3pi/5))???

Subject: Maths, asked on 10/2/17

## A bag contains 6 white balls and 9 black balls. Four balls are drawn at random. Find the probability for the first draw to give 4 white and the second draw to give 4 black balls in each of the following cases ​: (a) balls are replaced before the second draw  (b) the balls are not replaced before the second draw

Subject: Maths, asked on 12/6/15

## show that the function f: R ---->R given by f(x)=x3 + x is a bijection.

Subject: Maths, asked on 16/4/16

## Prove that : cos-1x-cos-1y=cos-1{xy+whole root over(1-x2)(1-y​2)​}

Subject: Maths, asked on 23/6/15

## cos inverse [ root ( 1 - cosx ) / 2 ]

Subject: Maths, asked on 18/4/15

## differentiate y = log whole root x - 1/ x + 1.

Subject: Maths, asked on 6/7/12

## Use matrix multiplication to divide rs. 30,000 in two parts such that the total annual interest at 9% on the first part and 11% on the second part amounts rs. 3060.

Subject: Maths, asked on 28/4/19

## Find the value of k for which the function f(x) = { sinx-cosx/4x - pi , x not equal pi/4 K, x = pi/4 is continuous at x = pi/4

Subject: Maths, asked on 14/8/13

## differentiate wrtx1)log(a+ bsinx)/(a-bsinx)2)log7(log7x)3)(ex+e-x)/(ex-e-x)

Subject: Maths, asked on 2/2/14

## if y= [log(x+root x2+1)]2 show that (1+x2) d2y/dx2 +xdy/dx =2

Subject: Maths, asked on 28/2/14

## Using properties of determinats, prove thata2 2ab b2b2 a2 2ab2ab b2 a2 = (a3 + b3)2

Subject: Maths, asked on 3/10/17

## Q5 solve it 5. Three schools A, B and C want to award their selected students for the values of honesty, regularity and hard work. Each school decided to award a sum of Rs. 2500, Rs. 3100, Rs. 5100 per student for the respective values. The number of students to be awarded by the three schools as given below:                                                                                                                   A = 50500, 40800, 41600                     Find total money given in awards by the three schools.

Subject: Maths, asked on 29/5/14

## If xp.yq = (x+y)p+q , Prove that(i) dy/dx = y/x(ii) d2y/dx2 = 0

Subject: Maths, asked on 18/1/18

## Q. 16. Find the value of  in the matrix  A =

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