Is the value of sine positive, negative, or zero at 3π/2?

Positive

Negative

Zero

Step-by-step explanation:

The given function is

Where , so the angle is

This angle is at between the third and fourth quadrant, the angle has its endside at y-axis, specifically, at its negative side, where the sin function is -1, because it's in the negative part of y-axis.

Therefore, the right answer is negative.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8