Find the sum of n terms of the series `sqrt(1-sin2theta)+(sqrt(1-sin4theta)+sqrt(1-sin6theta)+…`

cos theta=sqrt(1-sin theta)

cos theta=sqrt(1-sin theta)

sqrt((1+sin theta)/(1-sin theta)?)?

cos theta sqrt(1-sin^(2)theta)=

Find the sum to n terms of the series sin^3 theta +1/3 sin^3 3theta+1/3^2sin^3 9theta+1/3^3 sin^3 27theta+…

Find the sum to n terms of the series sin^3 theta +1/3 sin^3 3theta+1/3^2sin^3 9theta+1/3^3 sin^3 27theta+…

Evaluate: sqrt((1-sin theta)/(1+sin theta)) .

If theta=60^@ then 1/2 sqrt(1+sin theta)+1/2sqrt(1-sin theta)=

If theta lies in the second quadrant. Then the value of sqrt((1-sin theta)/(1+sin theta))+sqrt((1+sin theta)/(1-sin theta)) is equal to :

If theta lies in the second quadrant. Then the value of sqrt((1-sin theta)/(1+sin theta))+sqrt((1+sin theta)/(1-sin theta)) is equal to :