Post History
#3: Post edited
Prove $(\cos^3\theta+\sin^3\theta)^2= \cos^6(1+\tan^3\theta)^2$
- Prove $(\cos^3\theta+\sin^3\theta)^2= \cos^6\theta(1+\tan^3\theta)^2$
#2: Post edited
$$(\cos^3\theta+\sin^3\theta)^2= \cos^6(1+\tan^3\theta)^2$$- How to prove the above sum? I was looking at triple angle formula but, i couldn’t find relation between tan sin cos in triple angle formula.
- $$(\cos^3\theta+\sin^3\theta)^2= \cos^6 \theta(1+\tan^3\theta)^2$$
- How to prove the above sum? I was looking at triple angle formula but, i couldn’t find relation between tan sin cos in triple angle formula.