Question Number 43226 by veerendravyas1974@gmail.com last updated on 08/Sep/18 $$ \\ $$$${If}\left({x}−\frac{\mathrm{1}}{{x}}=\mathrm{7}\right){thenthevalueofx}^{\mathrm{4}} +\frac{\mathrm{1}}{{x}^{\mathrm{4}} }{is}? \\ $$ Answered by tanmay.chaudhury50@gmail.com last updated on 08/Sep/18 $${x}^{\mathrm{2}} +\frac{\mathrm{1}}{{x}^{\mathrm{2}}…
Question Number 43224 by tanmay.chaudhury50@gmail.com last updated on 08/Sep/18 $${how}\:{many}\:{square}\:{in}\:{a}\:{chess}\:{board}. \\ $$ Answered by ajfour last updated on 08/Sep/18 $$\mathrm{64}+\mathrm{49}+\mathrm{36}+\mathrm{25}+\mathrm{16}+\mathrm{9}+\mathrm{4}+\mathrm{1} \\ $$$$\:\:\:\:\:=\:\frac{\mathrm{8}×\mathrm{9}×\mathrm{17}}{\mathrm{6}}\:=\:\mathrm{204}\:. \\ $$ Commented…
Question Number 174220 by Mastermind last updated on 27/Jul/22 Commented by MJS_new last updated on 27/Jul/22 $$−\mathrm{21} \\ $$ Commented by Mastermind last updated on…
Question Number 43072 by Raj Singh last updated on 07/Sep/18 Answered by tanmay.chaudhury50@gmail.com last updated on 07/Sep/18 $$\mathrm{3}^{\mathrm{50}} \left(\mathrm{3}^{\mathrm{49}} −\mathrm{1}\right) \\ $$$$\mathrm{3}^{\mathrm{1}} \rightarrow{unit}\:{term}\:{is}\:\mathrm{3} \\ $$$$\mathrm{3}^{\mathrm{2}}…
Question Number 108571 by Dwaipayan Shikari last updated on 17/Aug/20 Answered by mr W last updated on 17/Aug/20 $${e}^{{x}} =\mathrm{1}+\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{{x}^{{n}} }{{n}!} \\ $$$${e}=\mathrm{1}+\underset{{n}=\mathrm{1}}…
Question Number 42878 by Raj Singh last updated on 04/Sep/18 Answered by tanmay.chaudhury50@gmail.com last updated on 04/Sep/18 $$\left({sp}\right)_{\mathrm{1}} =\mathrm{4225}\:\:\:\left({cp}\right)_{\mathrm{1}} =\frac{\mathrm{100}×\mathrm{4225}}{\mathrm{116}} \\ $$$$\left({sp}\right)_{\mathrm{2}} =\mathrm{4225}\:\:\left({cp}\right)_{\mathrm{2}} =\frac{\mathrm{100}×\mathrm{4225}}{\mathrm{84}} \\…
Question Number 42826 by MJS last updated on 03/Sep/18 $$\mathrm{solving} \\ $$$${ax}^{\mathrm{4}} +{bx}^{\mathrm{3}} +{cx}^{\mathrm{2}} +{dx}+{e}=\mathrm{0} \\ $$$$\left({a}\neq\mathrm{0},\:{b},\:{c},\:{d},\:{e}\right)\in\mathbb{Q} \\ $$$$ \\ $$$$\:\:\:\:\:\:\:\:\:\:\mathrm{special}\:\mathrm{cases}\:\left(\mathrm{easy}\:\mathrm{to}\:\mathrm{solve}\right) \\ $$$$\:\:\:\:\:\:\:\:\:\:{ax}^{\mathrm{4}} +{e}=\mathrm{0}\:\mathrm{solve}\:{at}^{\mathrm{2}} +{e}=\mathrm{0}\:\Rightarrow\:{x}=\pm\sqrt{{t}_{\mathrm{1},\:\mathrm{2}}…
Question Number 42775 by tanmay.chaudhury50@gmail.com last updated on 02/Sep/18 $${my}\:{mother}\:{fell}\:{down}\:{and}\:{broke}\:{waist}…{so}\:{i}\:{ambusy} \\ $$$${for}\:{mother}…{age}\:\mathrm{85}…{i}\:{am}\:{now}\:{kolkata}\:{for}\:{mother} \\ $$ Commented by MJS last updated on 02/Sep/18 $$\mathrm{sorry}\:\mathrm{to}\:\mathrm{hear}\:\mathrm{this},\:\mathrm{sending}\:\mathrm{blessings}! \\ $$ Commented…
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