Answer:
I think the answer would be +15.
Step-by-step explanation:
What do you meen they are numbers
I pretty sure the answer is c
Answer:
180
Step-by-step explanation:
In this drawing I made, I added some variables. a and d are complimentary, meanwhile b and c are complimentary. A straight line is an angle of 180 degrees. Therefore, a + b = 180.
D/dx ( cos (4x)) = - sin (4x) · d/dx ( 4x) = - 4 sin (4x)