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maw [93]
3 years ago
10

Problem

Mathematics
1 answer:
svet-max [94.6K]3 years ago
7 0

Answer:

Step-by-step explanation:

cos 225 = -cos 45 = -1/√2.

sin 225 = -sin45 = -1√2.

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Therefore, $390 is the interest will Charlie’s initial investment earn over the 15-year period.

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