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From the given figure, prove that cosθ =
13/5

From the given figure, prove that cosθ = 13/5-example-1
User Madagaga
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1 Answer

4 votes

Answer:

Square root of 15^2-9^2=12

square root 13^2-12^=5

hence cosθ = 5/13 not 13/5.

User Matthew Brett
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