URGENT! When we solve (cos²x - 1 = 0) by adding and taking the square root, how come we get the same answer when we factor (cos²

Question

Mazyrski [523]

3 years ago

13

URGENT! When we solve (cos²x - 1 = 0) by adding and taking the square root, how come we get the same answer when we factor (cos²

x - 1) and use the zero product property to find the solution?

Mathematics

1 answer:

zysi [14] · Answer 1 · 2022-03-16T13:09:21+03:00

zysi [14]3 years ago

3 0

Answer:

It is the same answer because you still have the same x-1 and he exponent of 2. It doesn't matter about the zero unless you are trying to find the angle of a triangle.

Step-by-step explanation: