Answer:
12,448.9
Step-by-step explanation:
i'm sorry if this is wrong
a) cos
b) sin
c) tan maybe?
x∈[3,9]
Step-by-step explanation
first
x+2≥5
x+2<11
next
x≥3
x<9
last
True
This is just a general property to know, I don't want to prove it LOL