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Suppose that the functions q & r are defined as follows:
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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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What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?
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Mathematics, 21.06.2019 23:20
In the diagram below,abc is congruent to dec what is the value of x
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Suppose that the functions q & r are defined as follows:...
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