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pre-calculus

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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

  • pre-calculus -

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

  • pre-calculus -

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

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