`(sin2 theta)/(1-cos2 theta)`

Prove that: (a) (sin 2 theta)/(1+cos 2 theta)=tan theta (b) (1+sin 2 theta+2theta)/(1+sin2 theta-cos 2 theta)=cot theta

If Cot theta=1/sqrt3 , then the value of (2-sin^2 theta)/(1-cos^2 theta)+cosec^2 theta+sec theta is: यदि Cot theta=1/sqrt3 , है, तो (2-sin^2 theta)/(1-cos^2 theta)+cosec^2 theta+sec theta का मान ज्ञात करें |

(sin3 theta)/(1+2cos2 theta)

Simplify (sin^(2)theta)/(1+cos theta)+(sin^(2)theta)/(1-cos theta)

Prove that sin theta=(sin3 theta)/(1+2cos2 theta) and hence deduce the value of sin15^(@)

sqrt(((1+sin2theta))/(1-cos^(2)theta))["where" theta in [0,(pi)/(4)]]=

Prove that: a) (sin2theta)/(1+cos2theta) = tantheta b) (1+sin2theta+cos2theta)/(1+sin2theta-cos2theta)=cottheta

If cos theta>sin theta>0, then evaluate : int{log((1+sin2 theta)/(1-sin2 theta))^(cos^(2)theta)+log((cos2 theta)/(1+sin2 theta))}d theta

If cos theta>sin theta>0 then I=int[ln[(1+sin2 theta)/(1-sin2 theta)]^(cos^(2)theta)+ln[(cos2 theta)/(1+sin2 theta)]]K sin2 theta ln[(cos theta+sin theta)/(cos theta-sin theta)]+m ln|cos2 theta|+c then k+m=

If (sin^(2)theta)/(1+cos^(2)theta)+(sin^(2)theta)/(1-cos^(2)theta)=(8)/(5)andtheta is acute , then what is the value (in degrees ) of theta ?