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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 18:30
Which of the choices shown could be used to prove that aacp=abcp ?
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Mathematics, 21.06.2019 20:00
What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?
Answers: 1
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