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If 2tanB+cotB=tanA,then proved that 2tan(A-B)=cotB​
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If 2tanB+cotB=tanA,then proved that 2tan(A-B)=cotB​

User Jak Samun
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12 votes

Answer:

it is so hard it's optional math bro I tried much

Explanation:

hope others can give answers

User Samuel MacLachlan
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