Question Number 214183 by jlewis last updated on 30/Nov/24 $$\left.\mathrm{a}\right)\:\mathrm{The}\:\mathrm{angle}\:\mathrm{of}\:\mathrm{elevation}\:\mathrm{from}\:\mathrm{a}\:\mathrm{point}\:\mathrm{A}\:\mathrm{to}\:\mathrm{the} \\ $$$$\mathrm{top}\:\mathrm{of}\:\mathrm{building}\:\mathrm{5m}\:\mathrm{away}\:\mathrm{is}\:\mathrm{45}°.\:\mathrm{Another}\:\mathrm{point} \\ $$$$\mathrm{B}\:\mathrm{is}\:\mathrm{4m}\:\mathrm{from}\:\mathrm{A}.\:\mathrm{By}\:\mathrm{scale}\:\mathrm{drawing}\:\mathrm{determine}. \\ $$$$\left.\mathrm{i}\right)\:\mathrm{the}\:\mathrm{angles}\:\mathrm{of}\:\mathrm{elevation}\:\mathrm{from}\:\mathrm{point}\:\mathrm{B} \\ $$$$\left.\mathrm{ii}\right)\mathrm{the}\:\mathrm{height}\:\mathrm{of}\:\mathrm{the}\:\mathrm{building} \\ $$$$\left.\mathrm{b}\right)\:\mathrm{A}\:\mathrm{man}\:\mathrm{who}\:\mathrm{is}\:\mathrm{in}\:\mathrm{the}\:\mathrm{elevator}\:\mathrm{half}\:\mathrm{way}\:\mathrm{the} \\ $$$$\mathrm{building}\:\mathrm{notices}\:\mathrm{a}\:\mathrm{lorry}\:\mathrm{approaching}\:\mathrm{the} \\ $$$$\mathrm{building}\:\mathrm{at}\:\mathrm{an}\:\mathrm{angle}\:\mathrm{of}\:\mathrm{depression}\:\mathrm{20}°.\:\mathrm{How} \\…
Question Number 214176 by a.lgnaoui last updated on 30/Nov/24 $$\mathrm{find}\:\mathrm{the}\:\mathrm{vslue}\:\mathrm{of}\:\boldsymbol{\mathrm{R}}\left(\mathrm{radius}\:\boldsymbol{\mathrm{o}}\mathrm{f}\:\mathrm{circle}\:\mathrm{betwen}\:\mathrm{two}\:\right. \\ $$$$\:\mathrm{diagrame}\:\mathrm{curves}\:\boldsymbol{\mathrm{f}}\left(\boldsymbol{\mathrm{x}}\right)\mathrm{and}\:\boldsymbol{\mathrm{g}}\left(\boldsymbol{\mathrm{x}}\right)\:\mathrm{as}\:\mathrm{showen}. \\ $$$$\mathrm{you}\:\mathrm{can}\:\mathrm{use}\:\mathrm{the}\:\mathrm{programer}\:\mathrm{calculator}. \\ $$ Commented by a.lgnaoui last updated on 30/Nov/24 Commented by…
Question Number 214178 by ajfour last updated on 30/Nov/24 Commented by ajfour last updated on 01/Dec/24 $${Q}.\:\mathrm{214132}\:\:{But}\:{with}\:{left}\:{roller}\:{fixed}. \\ $$ Answered by ajfour last updated on…
Question Number 214140 by issac last updated on 29/Nov/24 $$\mathrm{Let}\:{F}\:;\:\mathbb{R}^{{n}} \rightarrow\mathbb{R}^{{n}} \:\mathrm{be}\:\mathrm{continuously} \\ $$$$\mathrm{differentiable}\: \\ $$$$\left.\boldsymbol{\mathrm{a}}\right)\:\mathrm{assume}\:\mathrm{that}\:\mathrm{the}\:\mathrm{Jacoboian}\:\mathrm{matrix}\: \\ $$$$\frac{\partial{f}_{{i}} }{\partial{x}_{{j}} }\:\mathrm{has}\:\mathrm{rank}\:{n}\:\mathrm{everywhere} \\ $$$$\mathrm{prove}\:\mathrm{that}\:{f}\left(\mathbb{R}^{{n}} \right)\mathrm{is}\:\mathrm{open} \\ $$$$\left.\boldsymbol{\mathrm{b}}\right)\:\mathrm{suppose}\:\mathrm{that}\:{f}^{−\mathrm{1}}…
Question Number 214152 by Ismoiljon_008 last updated on 29/Nov/24 Commented by Ismoiljon_008 last updated on 29/Nov/24 $$ \\ $$$$\:\:\:{What}\:{is}\:{the}\:{number}\:{of}\:{points}\:{in}\:{the}\: \\ $$$$\:\:\:{interval}\:\left(−\mathrm{1};\mathrm{12}\right)\:{where}\:{the}\:{derivative} \\ $$$$\:\:\:{of}\:{the}\:{function}\:{y}\:=\:{f}\left({x}\right)\:{is}\:{equal}\:{to}\:{zero}\:? \\ $$…
Question Number 214138 by abdelsalam last updated on 29/Nov/24 Commented by abdelsalam last updated on 29/Nov/24 $${find}\:\:{x} \\ $$ Answered by issac last updated on…
Question Number 214132 by ajfour last updated on 29/Nov/24 Answered by MathematicalUser2357 last updated on 29/Nov/24 $${b}^{\mathrm{2}} ={a}^{\mathrm{2}} +{c}^{\mathrm{2}} −\mathrm{2}{ac}\:\mathrm{cos}\:\theta \\ $$$$\mathrm{cos}\:\theta=\frac{{a}^{\mathrm{2}} −{b}^{\mathrm{2}} +{c}^{\mathrm{2}} }{\mathrm{2}{ac}}…
Question Number 214144 by a.lgnaoui last updated on 29/Nov/24 $$\mathrm{calculer}\:\:\mathrm{n}\:\:\:\: \\ $$ Commented by a.lgnaoui last updated on 29/Nov/24 Commented by issac last updated on…
Question Number 214163 by issac last updated on 29/Nov/24 Commented by mathkun last updated on 30/Nov/24 $$\mathrm{I}\:\mathrm{am}\:\mathrm{a}\:\mathrm{begginer}\:\mathrm{in}\:\mathrm{Calculus}. \\ $$$$\mathrm{How}\:\mathrm{do}\:\mathrm{you}\:\mathrm{find}\:\mathrm{the}\:\mathrm{derivative}\:\mathrm{of}\:\mathrm{this}\:\mathrm{function}? \\ $$$$\mathrm{The}\:\mathrm{equation}\:\mathrm{for}\:\mathrm{y}\:\mathrm{with}\:\mathrm{respect}\:\mathrm{to}\:\mathrm{x}\:\mathrm{is}\:\mathrm{not}\:\mathrm{given}. \\ $$ Commented by…
Question Number 214111 by issac last updated on 28/Nov/24 $$\mathrm{hmmmm}………… \\ $$$$\mathrm{can}\:\mathrm{we}\:\mathrm{find}\:\mathrm{closed}\:\mathrm{form}\:\mathrm{of}\:\mathrm{sum} \\ $$$$\underset{{j}=\mathrm{0}} {\overset{\infty} {\sum}}\:\frac{\mathrm{1}}{\mathrm{2}^{\mathrm{2}^{{j}} } }\:??\:\mathrm{or}\:\mathrm{any}\:\mathrm{idea}..? \\ $$ Terms of Service Privacy Policy…