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Mathematics, 05.06.2020 04:59 milagritomiracle
Which expressions are equivalent to -7y+y2-30?
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Mathematics, 21.06.2019 15:00, peytonamandac9114
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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Which expressions are equivalent to -7y+y2-30?...
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