Answer:
That's incorrect. The simplest way to show this is by evaluating the functions at a given point. Let's say x=0, then:
Sin(-x) = Sin(0) = 0
-cos x = -cos (0) = -1
Therefore, Sin(-x)≠-cos x.
I’m sorry I can’t help but pray
She improved about 4.3 words per min each week
…………………………………………….not really sure about the last question
Phillip forgot to put a period between 2 and 50