Math, asked by nachiketstpatil7220, 1 day ago

If sin A = cos A, then cos 2A is equal to

Answers

Answered by anubhutijha0410

1

Answer:

0

Step-by-step explanation:

sinA = cosA

when A=45

so,

Cos 2A = Cos 2×45 = cos 90

Cos 90= 0

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