SOLUTION: Tanx=m²—n²/2mn Find Cosx

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Question 1151210: Tanx=m²—n²/2mn
Find Cosx
Found 2 solutions by math_helper, MathLover1:
Answer by math_helper(2461) (Show Source):
You can put this solution on YOUR website!

so

Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website!

Find

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