2 years ago

Anybody know the answer?

Mathematics

2 answers:

Deffense [45]2 years ago

4 0

I think it should end up to be cos + cos

jeka57 [31]2 years ago

3 0

That equation would become :

[cosx*cosx +sinx*sinx], [cos^2(x)+sin^2(x)]

When adding the squares of a sin and cos, the answer is one. The is a trig identity you MUST memorize.

So : cos^2(x)+sin^2(x)=1

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