What is the value of sinθ given that (−3, 4) is a point on the terminal side of θ ?

sinθ = 4/5

Step-by-step explanation:

The given point is (-3,4). This point lies in the second quadrant.

In second quadrant, sinθ is positive.

Now, please see the attached image.

The point (-3,4) is at A. The hypotenuse OA can be found by using the Pythagorean theorem.

Now, in triangle AOB,

Thus, we have

sinθ = 4/5

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

answer: i literally just answered this question but they want me to do it again

step-by-step explanation: