Question

If angle b and angle q are acute angles such that sin b = sin q prove that angle b = angle q

Answer 1

Answer:

take a triangle which right angle at A

now,it is given that sinb=sinq

p/h=p/h

AQ/BQ=AB/BQ

Here we see that BQ are same .so,we cut this

we find that AQ=AB

We know that angles opposite to equal sides are equal

hence sinb=sinq