
You have to know that every number to negative power is the inverse, for example:

in this exercise we will make the same thing
when


let's do the inverse

now


doing the signal rule
Option 1.
sin(2x) = 2sin(x)cos(x)
cos(2x) = 1 - 2sin(x)^2
Answer:
52
Step-by-step explanation:
94+34=128
180-128=52
Answer:
15
Step-by-step explanation: