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Given that tan 65⁰ = 3 + v5 , without using tables or calculator, determine tan 25⁰

Given that tan 65⁰ = 3 + √5 , without using tables or calculator, determine tan 25⁰, leaving your answer in the form at a + b √c where a, b and c are rational numbers.

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Wilfykil answered the question on September 11, 2019 at 07:46

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