Math, asked by j3malhotra, 11 months ago

CosA=12/13,find cos2A

Answers

Answered by aayusharora045

1

Answer:

Step-by-step explanation:

Cos 2A= 2Cos^2A-1

= 2(12/13)^2-1

2(144/169)-1

(288/169)-1

119/169. Ans

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