Answer:
Step-by-step explanation:
The identity you will use is:
So,
Now, using the difference of sin
Note: state that
Solving the difference of sin:
Then,
Once
And,
Therefore,
The graph shows the calling charges of two cell phone companies. At how many minutes do the two companies charge the same amount
?
Α. Ο
B. 15
C. 20
D 4
Α. Ο
B. 15
C. 20
D 4
2 answers:
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