Question

if cos=a/b then sin x is equal to:​

Answer 1

the question is wrong it is sin^2x

Step-by-step explanation:

cos=a/b

sin^2 = 1 - cos^2 x

=1 - (a/b)^2

=1 - a^2/b^2

=b^2 - a^2/ b^2

Answer 2

Concept:

sin² x + cos² x = 1

Given:

We are given that:

cos θ = a / b

Find:

We need to find the value of sin θ.

Solution:

We know that:

cos = a / b

Also, we know the property that is:

sin² x + cos² x = 1

Using this, we get that:

sin² θ = 1 - cos² θ

sin² θ = 1 - (a / b)²

sin² θ = 1 - a² / b²

sin² θ = (b² - a²) / b²

sin θ = √(b² - a²) / b

Therefore, we get the value of sin θ as (b² - a²) / b.

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