Math, asked by pratikpraiya, 5 hours ago

2 sing A = v3 and A is acute, find sin3A.

Answers

Answered by zikku2005

0

Answer:

answer is 2

Step-by-step explanation:

Given that 2cos2A=3

So,

cos2A=23

cos2A=cos30∘

2A=30∘

A=15∘

It is also given that sin3A=m1

So,

sin3×15∘=m1

sin45∘=m1

21=m1

Hence, m=2

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