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express-in-partial-fraction-5-x-2-x-3-2-

Question Number 60756 by readone97 last updated on 25/May/19 $${express}\:{in}\:{partial}\:{fraction}\:\mathrm{5}/\left({x}−\mathrm{2}\right)\left({x}+\mathrm{3}\right)^{\mathrm{2}} \\ $$ Commented by Prithwish sen last updated on 25/May/19 $$\frac{\mathrm{1}}{\left(\mathrm{x}−\mathrm{2}\right)\left(\mathrm{x}+\mathrm{3}\right)^{\mathrm{2}} }\:=\frac{\mathrm{A}}{\left(\mathrm{x}−\mathrm{2}\right)}\:+\frac{\mathrm{B}}{\left(\mathrm{x}+\mathrm{3}\right)}\:+\frac{\mathrm{C}}{\left(\mathrm{x}+\mathrm{3}\right)^{\mathrm{2}} } \\ $$$$\mathrm{and}\:\mathrm{then}\:\mathrm{proceed}.…

express-in-partial-fraction-3-x-1-x-2-4-

Question Number 60735 by readone97 last updated on 25/May/19 $${express}\:{in}\:{partial}\:{fraction}\:\mathrm{3}/\left({x}+\mathrm{1}\right)\left({x}^{\mathrm{2}} −\mathrm{4}\right) \\ $$ Answered by Forkum Michael Choungong last updated on 25/May/19 $$\frac{\mathrm{3}}{\left({x}+\mathrm{1}\right)\left({x}^{\mathrm{2}} −\mathrm{4}\right)\:}=\:\frac{{A}}{{x}+\mathrm{1}}\:+\:\frac{{B}}{{x}^{\mathrm{2}} −\mathrm{4}}…

Ques-2-Metric-Space-Question-Let-d-be-a-metric-on-a-non-empty-set-X-Show-that-the-function-U-is-defined-by-U-x-y-d-x-y-1-d-x-y-where-x-and-y-are-arbitrary-element-X-is-also-a-metri

Question Number 191787 by Mastermind last updated on 30/Apr/23 $$\mathrm{Ques}.\:\mathrm{2}\:\left(\mathrm{Metric}\:\mathrm{Space}\:\mathrm{Question}\right) \\ $$$$\:\:\:\:\:\:\mathrm{Let}\:\mathrm{d}\:\mathrm{be}\:\mathrm{a}\:\mathrm{metric}\:\mathrm{on}\:\mathrm{a}\:\mathrm{non}−\mathrm{empty} \\ $$$$\mathrm{set}\:\mathrm{X}.\:\mathrm{Show}\:\mathrm{that}\:\mathrm{the}\:\mathrm{function}\:\mathrm{U}\:\mathrm{is} \\ $$$$\mathrm{defined}\:\mathrm{by}\:\mathrm{U}\left(\mathrm{x},\mathrm{y}\right)=\frac{\mathrm{d}\left(\mathrm{x},\mathrm{y}\right)}{\mathrm{1}+\mathrm{d}\left(\mathrm{x},\mathrm{y}\right)},\:\mathrm{where} \\ $$$$\mathrm{x}\:\mathrm{and}\:\mathrm{y}\:\mathrm{are}\:\mathrm{arbitrary}\:\mathrm{element}\:\mathrm{X}\:\mathrm{is}\:\mathrm{also} \\ $$$$\mathrm{a}\:\mathrm{metric}\:\mathrm{on}\:\mathrm{X}. \\ $$ Terms of Service…

Ques-1-Metric-Space-Question-Let-X-be-the-set-of-all-bounded-sequences-of-complex-numbers-That-is-every-element-of-is-a-complex-sequence-x-x-k-1-such-x-i-lt

Question Number 191786 by Mastermind last updated on 30/Apr/23 $$\mathrm{Ques}.\:\mathrm{1}\:\left(\mathrm{Metric}\:\mathrm{Space}\:\mathrm{Question}\right) \\ $$$$\:\:\:\:\:\:\:\:\mathrm{Let}\:\mathrm{X}\:=\:\rho_{\infty} \:\mathrm{be}\:\mathrm{the}\:\mathrm{set}\:\mathrm{of}\:\mathrm{all}\: \\ $$$$\mathrm{bounded}\:\mathrm{sequences}\:\mathrm{of}\:\mathrm{complex}\: \\ $$$$\mathrm{numbers}.\:\mathrm{That}\:\mathrm{is}\:\mathrm{every}\:\mathrm{element}\:\mathrm{of} \\ $$$$\rho_{\infty} \:\mathrm{is}\:\mathrm{a}\:\mathrm{complex}\:\mathrm{sequence}\:\overset{−} {\mathrm{x}}=\left\{\overset{−} {\mathrm{x}}\right\}_{\mathrm{k}=\mathrm{1}} ^{\infty} \: \\…

1-1-2-1-2-3-1-3-5-1-4-7-1-5-11-1-6-13-

Question Number 126200 by Dwaipayan Shikari last updated on 18/Dec/20 $$\frac{\mathrm{1}}{\mathrm{1}^{\mathrm{2}} }−\frac{\mathrm{1}}{\mathrm{2}^{\mathrm{3}} }+\frac{\mathrm{1}}{\mathrm{3}^{\mathrm{5}} }−\frac{\mathrm{1}}{\mathrm{4}^{\mathrm{7}} }+\frac{\mathrm{1}}{\mathrm{5}^{\mathrm{11}} }−\frac{\mathrm{1}}{\mathrm{6}^{\mathrm{13}} }+…. \\ $$ Commented by Olaf last updated on…

Divide-a-113mm-line-into-ratio-1-2-4-

Question Number 191688 by Mastermind last updated on 29/Apr/23 $$\mathrm{Divide}\:\mathrm{a}\:\mathrm{113mm}\:\mathrm{line}\:\mathrm{into}\:\mathrm{ratio} \\ $$$$\mathrm{1}:\mathrm{2}:\mathrm{4} \\ $$ Commented by Mastermind last updated on 29/Apr/23 $$\mathrm{Ok}\:\mathrm{my}\:\mathrm{BOSS},\:\mathrm{thank}\:\mathrm{you}! \\ $$$$\mathrm{but}\:\mathrm{i}\:\mathrm{have}\:\mathrm{about}\:\mathrm{four}\:\mathrm{questions}\:\mathrm{on} \\…

x-0-pi-2-sinx-cosx-tg3x-

Question Number 60587 by behi83417@gmail.com last updated on 22/May/19 $$\boldsymbol{\mathrm{x}}\in\left[\mathrm{0},\frac{\pi}{\mathrm{2}}\right] \\ $$$$\boldsymbol{\mathrm{sinx}}+\boldsymbol{\mathrm{cosx}}=\boldsymbol{\mathrm{tg}}\mathrm{3}\boldsymbol{\mathrm{x}} \\ $$ Commented by MJS last updated on 22/May/19 $$\mathrm{tried}\:\mathrm{a}\:\mathrm{couple}\:\mathrm{of}\:\mathrm{different}\:\mathrm{substitutions},\:\mathrm{all} \\ $$$$\mathrm{lead}\:\mathrm{to}\:\mathrm{a}\:\mathrm{polynome}\:\mathrm{of}\:\mathrm{degree}\:\mathrm{8}\:\mathrm{without}\:\mathrm{any} \\…

A-particle-starts-from-rest-at-time-t-0-and-moves-in-a-straightline-with-variable-acceleration-a-m-s-2-where-a-t-5-0-t-5-a-t-5-10-t-2-t-5-t-being-measured-in-seconds-

Question Number 126092 by physicstutes last updated on 17/Dec/20 $$\mathrm{A}\:\mathrm{particle}\:\mathrm{starts}\:\mathrm{from}\:\mathrm{rest}\:\mathrm{at}\:\mathrm{time}\:{t}\:=\:\mathrm{0}\:\mathrm{and}\:\mathrm{moves}\:\mathrm{in}\: \\ $$$$\mathrm{a}\:\mathrm{straightline}\:\mathrm{with}\:\mathrm{variable}\:\mathrm{acceleration}\:{a}\:\mathrm{m}/\mathrm{s}^{\mathrm{2}} \:\mathrm{where}\: \\ $$$$\:{a}\:=\:\frac{{t}}{\mathrm{5}}\:,\:\mathrm{0}\:\leqslant\:{t}\:\leqslant\:\mathrm{5}\:,\:{a}\:=\:\frac{{t}}{\mathrm{5}}\:+\:\frac{\mathrm{10}}{{t}^{\mathrm{2}} }\:,\:{t}\:\geqslant\:\mathrm{5},\:{t}\:\mathrm{being}\:\mathrm{measured}\:\mathrm{in}\:\mathrm{seconds}. \\ $$$$\mathrm{Show}\:\mathrm{that}\:\mathrm{the}\:\mathrm{velocity}\:\mathrm{is}\:\mathrm{22}\frac{\mathrm{1}}{\mathrm{2}}\:\mathrm{m}/\mathrm{s}\:\mathrm{when}\:{t}\:=\:\mathrm{5}\:\mathrm{and} \\ $$$$\mathrm{11}\:\mathrm{m}/\mathrm{s}\:\mathrm{when}\:{t}\:=\:\mathrm{10}. \\ $$$$\mathrm{Show}\:\mathrm{also}\:\mathrm{that}\:\mathrm{the}\:\mathrm{distance}\:\mathrm{travelled}\:\mathrm{by}\:\mathrm{the}\:\mathrm{particle} \\ $$$$\mathrm{in}\:\mathrm{the}\:\mathrm{first}\:\mathrm{10}\:\mathrm{seconds}\:\mathrm{is}\:\:\left(\mathrm{43}\frac{\mathrm{1}}{\mathrm{3}}−\mathrm{10}\:\mathrm{ln}\:\mathrm{2}\right)\:\mathrm{m}. \\…

Question-191621

Question Number 191621 by Noorzai last updated on 27/Apr/23 Answered by gatocomcirrose last updated on 27/Apr/23 $$\mathrm{x}^{\mathrm{2}} =\mathrm{x}+\mathrm{1}\Rightarrow\mathrm{x}^{\mathrm{8}} =\left(\mathrm{x}^{\mathrm{2}} +\mathrm{2x}+\mathrm{1}\right)^{\mathrm{2}} =\left(\mathrm{3x}+\mathrm{2}\right)^{\mathrm{2}} \\ $$$$=\mathrm{9x}^{\mathrm{2}} +\mathrm{12x}+\mathrm{4}=\mathrm{9x}+\mathrm{9}+\mathrm{12x}+\mathrm{4}=\mathrm{21x}+\mathrm{13} \\…