Question

ß-2 + tan -1 γα r-a 1 +γα -ß 10. Prove that tan + aß 1 + a ²- ß² ß² - 2² =tan + tant + tant 1+0²B² a 1+ß²2² - B Bor a + tanpa g² - a² 22 1+r²a² - a​

Answer 1

Answer:

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