Question

if angle A and angle B are acute angles such that cosA =cos B, then show that angle A=angleB??
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Answer 1

Answer:

if angle A and angle B are acute angles such that cosA =cos B, then show that angle A=angleB??

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give me answer of my question please

Answer 2

Answer:

In the right-angled triangle ABC as shown below, ∠A and ∠B are acute angles and ∠C is right angle. Hence, ∠A = ∠B (angles opposite to equal sides of a triangle are equal.) ... Thus, ∠A = ∠B (angles opposite to equal sides of triangle are equal.)