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12-03-2021
Mathematics

contestada

If cos e = 4/5
and e is located in quadrant I, then find sin 2e

Respuesta :

12-03-2021

Answer:

Step-by-step explanation:

cosθ = ⅘

sin²θ = 1-cos²θ = 9/25

since θ is in quadrant I, sinθ = √(9/25) = ⅗

sin(2θ) = 2sinθcosθ = 2(⅗)(⅘) = 24/25

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