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Suppose sina = 12/13 with 90º≤a≤180º. suppose also that sinb = -7/25 with -90º≤b≤0º. find cos(a + b).
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What were mkh company's cash flows from (for) operating activities in 20x1? $(180,300) $233,100 $268,200 $279,400?
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The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?
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Suppose sina = 12/13 with 90º≤a≤180º. suppose also that sinb = -7/25 with -90º≤b≤0º. find cos(a + b)...
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