Math, asked by sam9951163050, 1 year ago


Find the value of tan 2A, if cos 3A = sin 45º.​

Answers

Answered by zs1973
1

Answer:

cos 3A= sin 45°

sin (90°-3A) = sin 45°

sin gets cancelled,

90°-45°= 3A

A = 45°/3= 15°

Step-by-step explanation:

From above question,

A=15°.

tan 2A = tan 2(15°)

Therefore,tan30°= 1/√3.

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