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30 July, 15:59

If tan x° = a divided by 4 and cos x°=4 divided by b, what is the value of sin x°?

A.) sin x° = 4b

B.) sin x°=b divided by a

C.) sin x° = 4a

D.) sin x°=a divided by b

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Answers (1)
  1. 30 July, 16:00
    0
    We are given with the expressions above and translate them into

    tan x = a / 4 and

    cos x = 4 = b

    According to the trigonometric identities, tan x = sin x / cos x, hence

    sinx = tan x * cos x = (a/4) * 4 or equal to a. The answer is C. 4a.
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