If `1/2+1/x=2` , then `x=`
(a) `2/5`
(b) `5/2`
(c) `3/2`
(d) `2/3`

If 1/2+1/x=2, then x= 2/5 (b) 5/2 (c) 3/2 (d) 2/3

Solve: log_2 (x+1) - log_2 (2-x) = 3 (a) 2/3 (b) 3/7 (c) 1/2 (d) 5/3

If ( x- 3 )/5 - 2 = -1 , then x is equal to ( a ) 8 ( b) 3 ( c ) -7 ( d ) 2

The curvature of the function f(x)=x^(2)+2x+1 at x=0 is (a) (2)/(5^("3/2")) (b) (2)/(5^("1/2")) (c) 2/5 (d) (2)/(5^("-3/2"))

2^x-2^y=2^(x+y) find dy/dx if x=y=2 (a) 3/5 (b) -3/5 (c) 2/5 (d) 1

If x+2 is a factor of x^2+a x+2b and a+b=4 , then (a) a=1, b=3 (b) a=3, b=1 (c) a=-1, b=5 (d) a=5, b=-1

int (2x ^ (3) + 3x ^ (2) + 4x + 5) / (2x + 1) dx equls to: (A) (x ^ (3)) / (2) + (x ^ (2)) / (2) +3 (x) / (2) + (7) / (4) ln (2x + 1) + C (B) 5 (x ^ (3)) / (2) + 6 (x) / (2) + (7) / (4) ln (2x + 1) + C (C) 3 (x ^ (3)) / (2) + 3 (x ^ (2)) / (2) + (7 ) / (4) ln (2x + 1) + C (D) (x ^ (2)) / (2) + 3 (x) / (2) + (7) / (4) ln (2x + 1) + C

The roots of x^(2) - (a + 1) x + b^(2) = 0 are equal . Then choose the correct value of a, b from the following option : (a) 5,2 , (b) 3,4 , (c ) 5,-3 , (d) 5,4

Let A=[1 2 3-5] and B=[1 0 0 2] and X be a matrix such that A=B X , then X is equal to 1/2[2 4 3-5] (b) 1/2[-2 4 3 5] (c) [2 4 3-5] (d) none of these

If x=5+2sqrt(6), then sqrt((x)/(2))-(1)/(sqrt(2x))= (a) 1 (b) 2 (c) 3 (d) 4