If sinθ = 0.7, then cos θ, 0 ≤ θ < 90°, is

Name: If sinθ = 0.7, then cos θ, 0 ≤ θ &lt; 90°, is
Uploaded: March 12, 2021, 5:39 p.m.
Duration: 59 s
Description: If sinθ = 0.7, then cos θ, 0 ≤ θ &lt; 90°, is

Question 137

If sinθ = 0.7, then cos θ, 0 ≤ θ < 90°, is

Solution

Given that : sinθ = 0.7

we know that : $$sin^2 \theta + cos^2 \theta$$ = 1

$$cos^2 \theta$$ = 1 - $$0.7^2$$ = 1 - 0.49 = 0.51

$$cos \theta$$ = $$\surd 0.51$$

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SSC CGL 2014 Tier 1 27 April shift 8

If sinθ = 0.7, then cos θ, 0 ≤ θ < 90°, is

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