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Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β
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Mathematics, 21.06.2019 15:20
Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative
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Mathematics, 21.06.2019 16:30
The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?
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Mathematics, 22.06.2019 00:20
When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?
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