Math, asked by lonewolf07, 1 year ago

2sin²A-cos²A=2.Find value of A

Answers

Answered by Lekahdek

9

Hey mate!

That's your answer!

Hope it helps :)

Attachments:

Answered by ashoksharma12818

7

Answer:

Step-by-step explanation:

2sin^2A-cos^A=2

2(1-cos^2A)-cos^2A=2

2-2cos^2A-cos^2A=2

2-3cos^2A=2

3cos^2A=0

cos^2A=0

CosA=0

A= 90degree (cos 90 = 0 )

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