precalculus
posted by devry .
I am having trouble with trigenometric identities I cannot figure it out for example sin³x+sin²xcos²x, could I get the steps to figure it out? And also how to do the equations and proving of trid id's. Please help. Thank you

An identity requires an equals sign. So what is the identity here?

is y=x to the 8th power an exponential function
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