If 0° ≤ θ ≤ 90° and cosθ =
11
15
, what is the value of sin (90° - θ)?

Step-by-step explanation:

The given expression is

According to trigonometric identities

We also can find the angle using the given expression and then replace it in the sin expression

Now, we find the answer for the sin expression:

Again, the faster way to solve this is by using the identity:

If and , then

hope it

step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)

9 x 8 divided by (5-3)=36