" 30."(sin x)/(1+cos x)

1- (sin ^ (2) x) / (1 + cos x) + (1 + cos x) / (sin x) - (sin x) / (1-cos x) =

The minimum value of sin x((1-cos x)/(sin x)+(sin x)/(1-cos x)) is

The maximum value of cos x ((cos x )/( 1- sin x) + (1- sin x)/( cos x) ) is

if a=(1+sin x)/(1-cos x+sin x) then (1+cos x+sin x)/(2sin x) is

Maximum value of cos x((cos x)/(1-sin x)+(1-sin x)/(cos x))

(cos x)/(1-sin x)=(1+cos x+sin x)/(1+cos x-sin x)

int(sin x cos x)/(1+sin x+cos x)

The number of solutions of the equation sin^(5)x-cos^(5)x=(1)/(cos x)-(1)/(sin x)(sin x!=cos x)

Find the area bounded by the curves y=(sin^(-1)(sin x)+cos^(-1)(cos x)) and y=(sin^(-1)(sin x)+cos^(-1)(cos x))^(2) for 0<=x<=2 pi

Prove that: (i) (1+"sin" 2theta-cos 2theta)/(1+"sin" 2theta+cos 2theta)="tan" theta . (ii) 2 tan 2x=(cos x+"sin" x)/(cos x-"sin" x)-(cos x-"sin" x)/(cos x+"sin" x) .