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sherif
Questions (2)
the first termn of an exponential sequence (GP) is greater than the fourth term by 13.5 and the fourth is greater than the third
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0.0025*10^1/3
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Answers (1)
s=integral let i=S(sec^3x)dx i=S(sec^3x)=S(sec^2x.secx).dx =tanxsecx-S(tan^2x.secx)dx= tanxsecx-S(sec^2x-1)secx.dx= tanxsecx-S(sec^3x)dx+S(secx)dx 2i=tanxsecx+ln|secx+tanx|+x i=(tanxsecx+ln|secx+tanx|+c)(0.5)
