If sin x = 0.3 , what is the value of cos x

asked Jul 4, 2019 177k views

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sin²(x)+cos²(x) =1
(0.3)²+cos²(x) =1
cos²(x) =1- (0.3)²
cos²(x) =1- 9/100
cos²(x) = 91/100
cos(x) = ± (91/100)
cos(x) = ± 0.91

Yanni answered Jul 6, 2019

by Yanni

5.8k points

4 votes

Answer: 0.95

Explanation:

RichieRock answered Jul 8, 2019

5.9k points

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