Answer:
See below.
Step-by-step explanation:
First, use the co-function identity:
We can turn the second term into cosine:
Substitute:
Now, use the sum to product formulas. We will use the following:
Substitute:
Use the even-odd identity:
Therefore:
Replace the second term with the original term:
Proof complete.
A sugar cookie recipe that makes 2 dozen cookies calls for 3 tablespoons of half-and-half. How much half-and-half would you need to make 3 dozen cookies?
Answer:
94
Step-by-step explanation:
Follow ORDER OF OPERATIONS (This is the order of which you solve problems)
One easy way to remember Order of Operations is PEMDAS!
P- Parenthesis FIRST
E- Exponents
M- Multiplication
D- Division
A- Addition
S- Subtraction LAST
1) 30÷5
6
2) 100-6
94
It would be 9 buddy. Negative divided by negative turns into positive. 45 divided by 5 is 9.