" 19."(1)/(sec theta-1)-(1)/(sec theta+1)=2cot^(2)theta

(tan theta)/(sec theta-1)-(sin theta)/(1+cos theta)=2cot theta

(sec^2 theta-1)/(sec^2 theta)- sin^2 theta=

If 1/(cosec theta-1)+1/(cosec theta+1) =2 sec theta, 0^@ यदि 1/(cosec theta-1)+1/(cosec theta+1) =2 sec theta, 0^@< theta < 90^@ , है, तो (cot theta+cos theta) का मान क्या होगा ?

Prove that: sqrt((sectheta -1)/(sec theta +1)) + sqrt((sec theta +1)/(sec theta -1)) = "2cosec" theta

cot^(2) theta ((sec theta -1)/(1+ sin theta ))+ sec^(2) theta ((sin theta -1)/( 1+ sec theta )) =

The trigonometric expression: cot^(2)[(sec theta-1)/(1+sin theta)]+sec^(2)theta[(sin theta-1)/(1+sec theta)] has the value has the

Prove that: sqrt((sec theta-1)/(sec theta +1)) + sqrt((sec theta + 1)/(sec theta-1)) = 2 "cosec" theta

sqrt((sec theta-1)/(sec theta+1))+sqrt((sec theta+1)/(sec theta-1))=2cos ec theta

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

(Prove that )/(cp sec theta+1)+(cos ec theta+1)/(cot theta)=2sec theta