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i have a question on a simplification

tan (45° + b) - tan (45° -b)

Then I put on both sides the Theorems for Addition. But I am not sure if my result is right. What is most possible simplification here?

is it 1 + 4 tan b / 1 - tan^2 b ???

Thanks very much for an answer.

Greetings

Philipp

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# Homework Help: Simplification on Tangens

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