# Math

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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.

(tan(π/2)+tan((2π)/3))
/
(1-tan(π/2)tan((2π)/3))

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

• Math -

Your expression exactly matches the expansion for
tan(A+B)

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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