Math, asked by kavitamourya4723, 1 year ago

If acosa=bcosb then prove that the triangle is either a right angled or an isoscales triangle

Answers

Answered by karthik413477

3

by sin rule a=2RsinA
b=2RsinB
so Rsin2A=Rsin2B
sin2A=sin2B
so A=B or A+B=90

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