(1-cos^2)(1-cos^2) (cos cos cos cos)
(1-cos)(1+cos)(1-cos)(1+cos)(cos)(cos)(cos)(cos)
the next one follows
Use the power-reducing formulas to rewrite the expression in terms of the first power of the cosine.
[#1.] (sin^4x)(cos^4x)
[#2.] (sin^4x)(cos^2x)
1 answer