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Given that cos(alpha)=1/5 and 0< alpha< pi/2, determine the values of cos alpha/2
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Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0
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What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?
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Given that cos(alpha)=1/5 and 0< alpha< pi/2, determine the values of cos alpha/2...
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