Question

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

Answer 1

Answer:

if

sin theta = 1/2

this implies theta = 30°

as sin 30 = 1/2

so

cos 30 = √3/2

hope this will help you

Answer 2

Given:

if sin theta = 1/2

To Find:

find the value of cos theta ​

Solution:

Sin and Cos are the trigonometric ratios, trigonometry is the field of mathematics that deals with triangles,

The basics of trigonometric ratios start with the right-angled triangle in which hypotenuse, perpendicular and base is defined and each trigonometric ratio is the ratio of these sides.

Sin theta =1/2 is defined for theta=30 degrees,

So we have the value for theta as 30 degrees,

Now

Cos theta = Cos 30

And the value of Cos 30 is

$Cos 30= \frac{\sqrt{3} }{2}$

Hence, the value of cos theta is root3/2.