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tanx/cotx)*cotx + tanx*sinx*cot^2xsecx + tanx*sinx*cot^2xsecx for x=pi/4

kumaran , 9 Years ago
Grade 11
anser 1 Answers
arunkumaran
let us omit the 1st term                    
so the remaining term   each term will be equal to one
so   2 times tanx*sinx*cot^2xsec=2 so answer is 3 since tanpi/4=1
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Last Activity: 9 Years ago
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