Question

prove that cot45/2-tan45/2=2​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$we \: knowhe \: value \: of \: \tan( \frac{45}{2} ) = \sqrt{2} - 1 \\ cot( \frac{45}{2} ) = \sqrt{2 } + 1 \\ then \: \sqrt{2} + 1 - ( \sqrt{2 } - 1) \\ = 2$