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Category: Algebra

Question-60056

Question Number 60056 by bhanukumarb2@gmail.com last updated on 17/May/19 Commented by maxmathsup by imad last updated on 17/May/19 $${we}\:{see}\:{that}\:\:{S}\:=\sum_{{k}=\mathrm{0}} ^{\infty} \:\frac{{sin}\left({k}\theta\right){cos}^{{k}} \theta}{{k}!}\:\Rightarrow{S}\:={Im}\left(\sum_{{k}=\mathrm{0}} ^{\infty} \:\frac{{e}^{{ik}\theta} \:{cos}^{{k}}…

Question-125577

Question Number 125577 by ajfour last updated on 12/Dec/20 Commented by ajfour last updated on 12/Dec/20 $${If}\:{the}\:{cubic}\:{curve}'{s}\:{eq}.\:\:{is} \\ $$$${y}={x}^{\mathrm{3}} −{x}−{c} \\ $$$${and}\:{parabola}'{s}\:{eq}.\:{is}\: \\ $$$${y}=\left({x}−{h}\right)^{\mathrm{2}} +\left(\frac{\mathrm{2}}{\mathrm{3}\sqrt{\mathrm{3}}}−{c}\right)\:,\:{then}…

Question-191103

Question Number 191103 by Mingma last updated on 18/Apr/23 Answered by Rasheed.Sindhi last updated on 18/Apr/23 $$\mathrm{4}^{−\frac{\mathrm{1}}{{x}}} +\mathrm{6}^{−\frac{\mathrm{1}}{{x}}} =\mathrm{9}^{−\frac{\mathrm{1}}{{x}}} \\ $$$$\frac{\mathrm{2}^{−\mathrm{2}/{x}} }{\mathrm{2}^{−\mathrm{1}/{x}} \centerdot\mathrm{3}^{−\mathrm{1}/{x}} }+\frac{\mathrm{2}^{−\mathrm{1}/{x}} \centerdot\mathrm{3}^{−\mathrm{1}/{x}}…