" 7.यदि "cosec theta=(5)/(3)," तो सिद्ध करें कि "(1-tan^(2)theta)/(1+tan^(2)theta)=cos^(2)theta-sin^(2)theta

Prove that : (1 - tan^(2) theta)/(1 + tan^(2) theta) = cos^(2) theta - sin^(2) theta

(sec^(2)theta-sin^(2)theta)/(tan^(2)theta)=cosec^(2)theta-cos^(2)theta

If tan^(2)theta = 3 cosec^(2)theta - 1 then theta =

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

cos theta(tan theta+2)(2tan theta+1)=2sec theta+5sin theta

cos theta(tan theta+2)(2tan theta+1)=2sec theta+5sin theta

cos theta(tan theta+2)(2tan theta+1)=2sec theta+5sin theta

(1+sin2 theta-cos2 theta)/(1+sin2 theta+cos2 theta)=tan theta

The value of cosec ^(2) theta cot ^(2) theta - sec ^(2) theta tan ^(2) theta -(cot ^(2) theta- tan ^(2) theta) (sec ^(2) theta cosec ^(2) theta -1) is-

Prove that : (i) 1+(cos^(2)theta)/(sin^(2)theta)-"cosec"^(2)theta=0 (ii) (1+tan^(2)theta)/("cosec"^(2)theta)=tan^(2)theta