Find the slope of the curve r=cos(2theta) at theta=pi/6.

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

Find the value of x for which the lines are parallel.

This is so hard and it’s for a test