Math, asked by satishkulkarni15, 2 months ago

if 0<A<pi/2, sin2A=cos3A then sinA=

Answers

Answered by dkchakrabarty01

1

Answer:

sin2A = cos 3A

sin2A = sin (90 - 3A)

2A = 90 - 3A

2A + 3A = 90

5A = 90

A = 90/5 = 18

sinA = sin18

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