Question

If sintheta-costheta=0then value ofcos4theta+cos4theta

Answer 1

Answer:

hi..mate here is your answer...

$given = \sin\beta - \cos\beta = 0 \\ too \: find = \cos4 \beta + \cos4 \beta \\ solve = \cos4 \beta + \cos4 \beta = \sin4 \beta + \sin4 \beta$

hope my answer will help you....