Question

if sin theta = 1/2 then find the value of cos theta​

Answer 1

Answer:

cos theta =sqrt{3}/ 2

Explanation:

As sin θ = 1/2 then θ = 30° and cos 30°= sqrt{3}/2[tex]

Check the trigonometric ratios.

Answer 2

Answer:

[tex] { \sin}^{2}0 + \cos {}^{2}0 = 1 \\ { (\frac{1}{2} })^{2} + {cos}^{2}0 = 1 \\ { \cos}^{2} 0 = 1 - \frac{1}{4} = \frac{3}{4} \\ \cos0 = \sqrt{ \frac{3}{4} } = \frac{ \sqrt{3} }{2}

we can also say that if sin 30°=1/2

then cos30°=3

^3/2