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Answer:
I need a little bit more detail in the question to answer.
Step-by-step explanation:
Step-by-step explanation:
2(cos 75)(cos75) -1
=2(0.6699) -1
=1.3398-1
=0.3398
Answer:
28 hours for 7 days
Step-by-step explanation:
8/2 =
4
4 hours for 1 day
1 x 7 =
7
7 x 4
28
28 for 7 days