Find the exact value of the expression.cos  cos  - sin  sin 

A. 0
B. 1
C. -1
D.


Answer: A

Mathematics

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Find the exact value of the sum.sin  - sin 

A.
B.
C.
D.

Mathematics

Solve using the multiplication principle.-6x = -30

A. 2 B. 24 C. -24 D. 5

Mathematics

Letting r stand for "The food is good," p stand for "I eat too much," and q stand for "I'll exercise," write the following in symbolic form.If the food is not good, I won't eat too much.

A. r ? ~p B. ~(r ? p) C. ~r ? ~p D. ~p ? ~r

Mathematics

Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.8-1

A. - 
B.
C. 8
D. -8

Mathematics