Tmsca # 6
8. If (x+1)/(x-2) + (x-2)/(x+1) is written as the mixed number A B/C , then B is?
22. If sinxcosy = -1/4 and sinycosx = 1/4 then cos(x-y) could equal
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last minute questions! :D
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last minute questions! :D
by Itryatmath » Fri Mar 16, 2012 9:05 pm
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Re: last minute questions! :D
by ohernandez » Fri Mar 16, 2012 10:26 pm
The shortcut for question 8 is: subtract the numerator and the denominator and then square to find B. ((x+1)-(x-2))^2 = 3^2 = 9
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