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Author: Tinku Tara

Question-10033

Question Number 10033 by ridwan balatif last updated on 21/Jan/17 Answered by mrW1 last updated on 21/Jan/17 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{{x}\left(\mathrm{cos}\:\mathrm{4}{x}^{\mathrm{2}} −\mathrm{1}\right)}{\left(\mathrm{1}−\frac{\mathrm{1}}{\mathrm{cos}^{\mathrm{2}} \:\mathrm{2}{x}}\right)} \\ $$$$=\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{{x}\left(\mathrm{cos}\:\mathrm{4}{x}^{\mathrm{2}} −\mathrm{1}\right)\mathrm{cos}^{\mathrm{2}}…

Question-75569

Question Number 75569 by naka3546 last updated on 12/Dec/19 Commented by MJS last updated on 13/Dec/19 $$\mathrm{was}\:\mathrm{my}\:\mathrm{answer}\:\mathrm{to}\:\mathrm{the}\:\mathrm{other}\:\mathrm{one}\:\mathrm{ok}? \\ $$$$\mathrm{it}'\mathrm{s}\:\mathrm{hard}\:\mathrm{to}\:\mathrm{understand}… \\ $$ Commented by naka3546 last…

The-first-3-runners-in-100m-race-were-clocked-9-5s-10s-10-5s-respectively-How-far-is-the-first-from-the-third-runners-when-the-first-runner-reached-the-finished-line-

Question Number 10029 by Tawakalitu ayo mi last updated on 21/Jan/17 $$\mathrm{The}\:\mathrm{first}\:\mathrm{3}\:\mathrm{runners}\:\mathrm{in}\:\mathrm{100m}\:\mathrm{race}\:\mathrm{were}\:\mathrm{clocked} \\ $$$$\mathrm{9}.\mathrm{5s},\:\mathrm{10s},\:\mathrm{10}.\mathrm{5s}\:\mathrm{respectively}.\:\mathrm{How}\:\mathrm{far}\:\mathrm{is}\:\mathrm{the}\: \\ $$$$\mathrm{first}\:\mathrm{from}\:\mathrm{the}\:\mathrm{third}\:\mathrm{runners}\:\mathrm{when}\:\mathrm{the}\:\mathrm{first}\: \\ $$$$\mathrm{runner}\:\mathrm{reached}\:\mathrm{the}\:\mathrm{finished}\:\mathrm{line}. \\ $$ Commented by mrW1 last updated…

Question-10023

Question Number 10023 by Tawakalitu ayo mi last updated on 21/Jan/17 Answered by ridwan balatif last updated on 21/Jan/17 $$\mathrm{6}.\mathrm{2}\:\:\mathrm{Ni}^{\mathrm{2}+} +\mathrm{2e}^{−} \rightarrow\mathrm{Ni}_{\left(\mathrm{s}\right)} \rightarrow\mathrm{reduction} \\ $$$$\:\:\:\:\:\:\:\:\:\mathrm{Zn}^{\mathrm{2}+}…

A-rectangular-building-was-constructed-and-its-height-was-twice-it-frontage-The-building-was-divided-into-parts-by-a-partition-that-is-30-feet-from-the-parallel-to-the-front-wall-If-the-near-partiti

Question Number 10022 by Tawakalitu ayo mi last updated on 21/Jan/17 $$\mathrm{A}\:\mathrm{rectangular}\:\mathrm{building}\:\mathrm{was}\:\mathrm{constructed}\:\mathrm{and} \\ $$$$\mathrm{its}\:\mathrm{height}\:\mathrm{was}\:\mathrm{twice}\:\mathrm{it}\:\mathrm{frontage}.\:\mathrm{The}\:\mathrm{building} \\ $$$$\mathrm{was}\:\mathrm{divided}\:\mathrm{into}\:\mathrm{parts}\:\mathrm{by}\:\mathrm{a}\:\mathrm{partition}\:\mathrm{that}\:\mathrm{is} \\ $$$$\mathrm{30}\:\mathrm{feet}\:\mathrm{from}\:\mathrm{the}\:\mathrm{parallel}\:\mathrm{to}\:\mathrm{the}\:\mathrm{front}\:\mathrm{wall}.\:\mathrm{If} \\ $$$$\mathrm{the}\:\mathrm{near}\:\mathrm{partition}\:\mathrm{of}\:\mathrm{the}\:\mathrm{bulding}\:\mathrm{is}\:\mathrm{3500}\:\mathrm{feet}. \\ $$$$\mathrm{Find}\:\mathrm{the}\:\mathrm{dimension}\:\mathrm{of}\:\mathrm{the}\:\mathrm{building}. \\ $$ Terms…