trigonometry

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Use fundamental Identities to find the exact value of the expression. Do not use a calculator.

Sin² 65° + cos² 65°=??..

How would I attempt to solve this problem??

  • trigonometry -

    1
    (by definition)

  • trigonometry -

    find sin65 and square it. find cos 65 and suare it. then add the two answers together

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