" 11."(x-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

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

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))

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

Differentiate w.r.t.x the function in Exercises 1 to 11. (sin x- cos x)^( sin x - cos x), (pi)/(4) lt x lt (3pi)/(4) .

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) .

int(cos x+sin x)/(cos x-sin x)(1-sin2x)dx