siyarammahato94 siyarammahato94

19-08-2021
Advanced Placement (AP)

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if sin2A=24/25 and sinA=4/5 then find the value of cosA

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Аноним Аноним

19-08-2021

Answer:

cosA = 3/5

Explanation:

sin2A = 2sinAcosA

Plug in our values:

24/25 = 2 * 4/5 * cosA

24/25 = 8/5 * cosA

cosA = 3/5

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