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Viktor [21]
3 years ago
7

If sinA=3/5 find the value of cos2A​help meeeeee

Advanced Placement (AP)
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

7/25

Explanation:

cos2A=1-2sin^2A

or, Cos2A=1-2.(3/5)^2

or, Cos2A=1-2(9/25)

or, Cos2A=1-(18/25)

or, Cos2A=(25-18)/25

or, Cos2A=7/25

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