Question

Point A is found at (-3, -3). Find the sin at that point.
A. √2/2

B. -√2/2

C. √3/3

D. -√3/3

Answer 1

Answer:

B. -√2/2.

Step-by-step explanation:

This is in the third quadrant  so the sine will be negative.

The hypotenuse =  √ [( -3)^2 + (-3)^2]

= √18 = 3√2.

Therefore the sine =  -3 / 3√2.

= -1 / √2

= -√2/2..