Question

if sin theta= 4/5 then find cos theta​

Answer 1

Step-by-step explanation:

Given:-

sin theta= 4/5

To find:-

find cos theta

Solution:-

Given that Sinθ=4/5

On squaring both sides then

=>(Sinθ)²=(4/5)²

=>Sin²θ=16/25

=>1-Sin²θ = 1-(16/25)

=>Cos²θ = (25-16)/25

=>Cos²θ = 9/25

=>Cosθ = √(9/25)

Cosθ =3/5

Answer:-

The value of Cosθ = 3/5 for the given problem