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Use an addition or subtraction formula to write the expression as a trigonometric function of one number, and then find its exact value.


Exact value answer=_________

~Thank you.. I thought it was undefined, apparently not.

  • Math -

    Your expression exactly matches the expansion for

    so you would get tan(π/2 + 2π/3)
    = tan 7π/6
    = .....

  • Math -

    Ahh Surprised I didn't see that.. Thank you.. The exact value would be .5773 right?

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