What is the value of `2^-3`
(A) `(1)/(8)`
(B) `-(1)/(8)`
(C) `(1)/(2)`

If y(x) is solution of x(dy)/(dx)+2y=x^(2), y(1)=1 then value of y(1/2)= (a) -(49)/(16) (b) (49)/(16) (c) (45)/(8) (d) -(45)/(8)

If 8^(x+1)=64 , what is the value of 3^(2x+1) ? (a)1 (b) 3 (c) 9 (d) 27

If the straight lines (x+1)/2=(-y+1)/3=(z+1)/(-2)and (x-3)/1=(y-lamda)/2=z/3 intersect then the value of lamda is (A) -5/8 (B) -17/8 (C) -13/8 (D) -15/8

Cube of (-1)/2i s (a) 1/8 (b) 1/(16) (c) -1/8 (d) (-1)/(16)

Find the value of : 8-6+(-2)-(-3)+1

((-1)/2)^5*\ ((-1)/2)^3 is equal to (a) ((-1)/2)^8 (b) -\ (1/2)^8 (c) (1/4)^8 (d) (-1/2)^(15)

The value of "{"8^(-4/3)-:2^(-2)")"^(1/2) is (a) 1/2 (b) 2 (c) 1/4 (d) 4

The value of cos(1/2cos^(-1)(1/8)) is (a) 3/4 (b) -3/4 (c) 1/(16) (d) 1/4

If the family of curves y=ax^2+b cuts the family of curves x^2+2y^2-y=a orthogonally, then the value of b = (A) 1 (B) 2/3 (C) 1/8 (D) 1/4

{(1/3)^2}^4 is equal to (a) (1/3)^6 (b) (1/3)^8 (c) (1/3)^(24) (d) (1/3)^(16)