Evaluate :

`pi/3 - ( pi - pi/3 )`

pi/4 + pi - pi/3 - pi/6

Evaluate : int_(-pi/3)^(pi/3)sin^3 x dx

Evaluate: int_(-(3 pi)/(2))^(-(pi)/(2))[(x+pi)^(3)+cos^(2)(x+3 pi)]dx

Evaluate : int_((pi)/(6))^((pi)/(3)) cos x dx .

Evaluate : int_((pi)/(6))^((pi)/(3)) sin^(2) x dx

(pi)/(4)-pi/3-pi/6

Evaluate sin((pi)/(n))+sin((3 pi)/(n))+sin((5 pi)/(n))+ to n terms.

sin^(-1)((-1)/2) (a) pi/3 (b) -pi/3 (c) pi/6 (d) -pi/6

Find sum of all possible value of theta in the interval (-(pi)/2,pi) for which (3+2isin theta)/(1-2sini theta) is purely imaginary (a) (pi)/(3) (b) (pi) (c) (2pi)/(3) (d) (pi)/(2)