Rocco has a weekly reading schedule, reading for 4 hours per day on some days and 2 hours per day on the other days. He reads a
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Answer:
Solution :
Step-by-step explanation:
Let's apply trivial identities here. We know that cos(-π / 4) = √2 / 2, sin(-π / 4) = - √2 / 2, cos(-π / 2) = 0, sin(-π / 2) = - 1. Let's substitute those values,
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As you can see your solution is the last option.