Question
Asked Dec 4, 2019
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Find all x if 0 <x<360°
4cos2 x-4sinx-5=0
X
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Find all x if 0 <x<360° 4cos2 x-4sinx-5=0 X

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Expert Answer

Step 1

Given,

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4 cos x- 4sin x – 5 =0

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Step 2

On simplificatio...

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4(1-sin2x)-4sin x -5 0 sin x+ cos'x = 1 4-4sin2 x-4sinx-5 =0 -4sin x-4sin x -1 = 0 sin x + 1 = 0 4sin2 x4 2 (2sin x 1 0 2sin x 1= 0 1 sin x 2

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Tagged in

Math

Trigonometry

Trigonometric Ratios