if cos x = 2 sin x, so the value of sin x cos x is …

Question

if cos x = 2 sin x, so the value of sin x cos x is …

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Orla Orla 1 year 2021-09-01T11:45:02+00:00 1 Answers 5 views 0

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  1. trungdung22
    0
    2021-09-01T11:46:34+00:00
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    Answer:

    1/2

    Step-by-step explanation:

    As cosx= 2sinx,

    now,

    so, sinxcosx = sinx(2sinx) = 2 sin²x

    Again,

    2sin²x =1

    sin²x= 1/2

    sinx = 1/ root 2

    sinx = sin 30

    x = 30

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