Home
Class 11
MATHS
Prove that cos 4theta–cos 4alpha = 8(cos...

Prove that `cos 4theta–cos 4alpha = 8(cos theta-cos alpha)(cos theta+ cos alpha )(cos theta -sin alpha)(cos theta+sin alpha)`

Promotional Banner

Similar Questions

Explore conceptually related problems

cos ( theta + alpha)* cos ( theta - alpha) + sin ( theta + alpha) * sin (theta - alpha )=

Prove that cos^(2)theta + cos^(2)(alpha + theta) – 2cos alpha *cos theta* cos(alpha +theta) is independent of theta .

if sin(theta+alpha)=cos(theta+alpha) then tan alpha

tan theta = (sin alpha-cos alpha) / (sin alpha + cos alpha)

Show that cos^(2)theta+cos^(2)theta(alpha+theta)-2cos alpha cos theta cos(alpha+theta) is independent of theta.

If tan alpha=(sin theta-cos theta)/(sin theta+cos theta) then sin alpha

If cos (theta - alpha) , cos theta , cos (theta + alpha ) are in H.P. then cos theta .sec"" (alpha )/(2) =

Show that: cos^(2)theta+cos^(2)(alpha+theta)-2cos alpha cos theta cos(alpha+theta) is independent of theta.

Show that cos^(2)theta+cos^(2)(alpha+theta)-2cos alpha cos theta cos (alpha+beta) is independent of theta .