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This is geometry. could anyone ? i can't fail this class. my grade is quite low already.
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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 15:30
Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)
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For what number x, 0<x<2pi, does cos=1...
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