Question

if cosA = cos B prove that A= B​

Answer 1

Answer:

According to the question:-

Let cosA=

Hypotenuse

sideadjacentA

AB

AC

Similarly,

cosB=

Hypotenuse

sideadjacentB

=

AB

BC

Given that

cosA=cosB

AB

AC

=

AB

BC

AC=BC

In triangle,

angles opposite equal side are equal

∠B=∠A

Answer 2

Step-by-step explanation:

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