The radian measure equivalent to -45º is

Find the equation using the point (4,8)

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?