Math, asked by sangeetasoni60937, 1 year ago

Sin A 3/5 then find value of Sin 2A

Answers

Answered by niya25
83
You need to apply the double angle formula for the sine:

sin(2A) = 2sin(A)cos(A)

Since sin(A) = 3/5:

sin(2A) = 2*(4/5)*cos(A) = (8/5)cos(A)

To find cos(A), use the Pythagorean identity:

sin2(A) + cos2(A) = 1

cos2(A) = 1 - sin2(A)

cos2(A) = 1 - (4/5)2

cos2(a) = 9/25

√cos2(A) = √(9/25)

cos(A) = ±3/5

So:

sin(2A) = (8/5)*(±3/5) = ±24/25
this is just example just by yourself
Answered by khadkamahesh205
0

Answer:

24/25

Step-by-step explanation:

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