Answer:
Identity (a) can be re-written as
which we already proven in another question, while for idenity (b)
step A is simply expressing each function in terms of sine and cosine.
step B is adding the terms on the LHS while multiplying the one on RHS.
step C is replacing the term on the numerator with the equivalent from the pithagorean identity 
For twice a number we can use the variable x
For four times a number we can use the variable c
4c - 2x + 15
I believe this is correct although I'm not 100% sure
Answer:
a person supposed to be able to foresee the future.
Step-by-step explanation:
Hope this helps. Can you tell me if it does?
Answer:
I believe its m > -6
Step-by-step explanation:
if I'm wrong I'm really sorry...
Answer:
enlargement
Step-by-step explanation:
Actual picture is smaller than the scaled one
Scaling is used to enlarge the actual picture
So the answer is enlargement
