(cos xdx)/(cos x cos-1)+(cosec(x))/(cos xe+1)=2sec^(2)theta

int(cos xdx)/((1-cos x)^(2))

Prove that (cos ec theta)/(cos ec theta-1)+(cos ec theta)/(cos ec theta+1)=2sec^(2)theta

Prove that ((1+cos theta)/(cos theta))((1-cos theta)/(cos theta))cosec^(2)theta=sec^(2)theta

int(sec xdx)/(csc x(3+2cos x))

(cos theta)/(cosec theta+1)+(cos theta)/(cosec theta-1)=2tan theta

If (cos ^(2) theta - 1) ( 2 sec ^(2) theta) + sec ^(2) theta + 2 tan ^(2) theta = 2 , 0 ^(@) lt theta lt theta lt 90^(@) , then (( "cosec" theta + cos theta))/(( "cosec theta - cos theta)) is equal to :

Prove that (1+ cot theta + tan theta ) ( sin theta - cos theta) = (sec theta )/(cosec^(2) theta) - (cosec theta)/(sec^(2)theta) .

( 1 + cos theta) ( 1 - cos theta ) cosec^2 theta =

cos(sec^(-1)x+cosec^(-1)x),|x|ge1

(1)/(1-cos theta)-(1)/(1+cos theta)=(2cos theta)/(sin^(2)theta)=2cot theta xx csc