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Mathematics 9 Online
OpenStudy (anonymous):

please help me answer this problems using the first principle 1. f(x)=sinx/x 2. f(x)=x^3sinx-5cosx 3.f(x)=secx-squareroot of2 tanx 4.f(x)=secxtanx 5.f(x)=cscxcotx 6.f(x)=cotx/1+cscx 7.f(x)=sin^2x+cos^2x

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