What is the exact value of arcsin(−√2/2) ? enter your answer, in terms of π , in the box.

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

With #! i’ve tried to figure it out but i can’t.

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)