[" 48.यदि "sec theta-tan theta=x," तब सिद्ध करें कि "],[" (i) "cos theta=(2x)/(1+x^(2))]

If sec theta+tan theta=x then sec theta=

If sec theta-tan theta=x then prove that cos theta=(2x)/(1+x^2)

If x= sec theta + tan theta, then x+1/x=.

If x= sec theta + tan theta, then x+1/x=.

If sec theta + tan theta = x , then sec theta =

If sec theta+tan theta = x , prove that sin theta= (x^2-1)/(x^2+1)

Prove each of the following identities : (i) (sec theta -1)/(sec theta +1) =(sin^(2) theta)/((1+ cos theta)^(2) ) (ii) (sec theta - tan theta)/(sec theta + tan theta) = (cos^(2) theta)/((1+ sintheta)^(2))

If (sec theta+tan theta)/(sec theta-tan theta)=5 , and theta is an acute angle, then the value of (3 cos^2 theta+1) /(3 cos^2 theta-1) is: यदि (sec theta+tan theta)/(sec theta-tan theta)=5 , तो (3 cos^2 theta+1) /(3 cos^2 theta-1) का मान ज्ञात करें जहाँ theta एक न्यून कोण है

If cot theta + tan theta = x and sec theta - cos theta = y then