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Mathematics 7 Online
OpenStudy (anonymous):

The expression sinx + cotx cosx can be simplified to _____. A. cosx sinx B. secx C. cotx D. cscx

OpenStudy (anonymous):

D... sinx + cotx cosx = sinx + cos^2x/sinx = sin^2xsinx + cos^x/sinx = 1/sinx = cscx

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