If `sin(50^@-((3theta)/2))=cos(3theta-50^@)`

sin(50^(@)+theta)-cos(40^(@)-theta)

Prove that (sin theta - 2 sin^(3) theta)/(2 cos^(3) theta - cos theta) = tan theta

(sin theta-2sin^(3)theta)/(2cos^(3)theta-cos theta)=tan theta

Prove that ("sin"theta-2"sin"^(3)theta)/(2"cos"^(3)theta-"cos"theta)="tan"theta

If sin(theta)_(1)+sin(theta)_(2)+sin(theta)_(3)=1 then cos(theta)_(1)+cos(theta)_(2)+cos(theta)_(3)=

Prove that: (sin theta - 2 sin^(3) theta) = (2cos^(3) theta - cos theta) tan theta .

sin (50^(@)+theta)-cos (40^(@) - theta)= _______

The value of the expression ((sin 3theta)/sin theta)^2-((cos3theta)/cos theta)^2=

Prove each of the following identities : (cos^(3) theta + sin^(3) theta)/(cos theta + sin theta ) + (cos^(3) theta - sin^(3) theta)/(cos theta - sin theta ) = 2

|(sin theta, cos theta, sin2theta),(sin(theta+(2pi)/(3)),cos(theta+(2pi)/(3)),sin(2theta+(4pi)/(3))),(sin(theta-(2pi)/(3)),cos(theta-(2pi)/(3)),sin(2theta-(4pi)/(3)))|=