Answer:
3
Step-by-step explanation:
Answer:
c is the correct option
Step-by-step explanation:
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Answer:
45
Step-by-step explanation:
6/2 = 3
42+3 = 45
Step-by-step explanation:

While subtracting , the sign of each term of second expression changes & remove the parentheses.
⟶ 
Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
⟶ 
⟶ 
In standard from , the expression should be written in such a way that the power of variables goes from highest to lowest.

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Answer:
the answer is 18
Step-by-step explanation:
9root3/sin60