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Category: Coordinate Geometry

Question-88430

Question Number 88430 by ajfour last updated on 10/Apr/20 Commented by ajfour last updated on 10/Apr/20 $${Q}.\mathrm{88352}\:\left({My}\:{answer}\:{to}\:{the}\:{question}\right) \\ $$$${parabola}:\:\:{y}={cx}^{\mathrm{2}} +{b} \\ $$$${ellipse}:\:\:\frac{{x}^{\mathrm{2}} }{{a}^{\mathrm{2}} }+\frac{{y}^{\mathrm{2}} }{{b}^{\mathrm{2}}…

Question-88352

Question Number 88352 by ajfour last updated on 10/Apr/20 Commented by ajfour last updated on 10/Apr/20 $${Eq}.\:{of}\:{ellipse}:\:\:\:\frac{{x}^{\mathrm{2}} }{\mathrm{25}}+\frac{{y}^{\mathrm{2}} }{\mathrm{9}}=\mathrm{1} \\ $$$${eq}.\:{of}\:{parabola}:\:\:{y}=\frac{\mathrm{6}{x}^{\mathrm{2}} }{\mathrm{25}}+\mathrm{3} \\ $$$${Find}\:{radius}\:{of}\:{shown}\:{circle}. \\…

Question-88245

Question Number 88245 by jagoll last updated on 09/Apr/20 Answered by john santu last updated on 09/Apr/20 $$\Rightarrow\frac{\Delta}{\mathrm{4}}\:=\:\mathrm{0}\:,\:\left[\:\Delta\:=\:{discriminant}\:\right] \\ $$$$\left({ab}+{bc}\right)−\left({a}^{\mathrm{2}} +{b}^{\mathrm{2}} \right)\left({b}^{\mathrm{2}} +{c}^{\mathrm{2}} \right)\:=\:\mathrm{0} \\…

Predict-the-density-of-Cs-from-the-density-of-the-following-elements-K-0-86-g-cm-3-Ca-1-548-g-cm-3-Sc-2-991-g-cm-3-Rb-1-532-g-cm-3-Sr-2-68-g-cm-3-Y-4-34-g-cm-3-Cs-

Question Number 22483 by Tinkutara last updated on 19/Oct/17 $$\mathrm{Predict}\:\mathrm{the}\:\mathrm{density}\:\mathrm{of}\:\mathrm{Cs}\:\mathrm{from}\:\mathrm{the} \\ $$$$\mathrm{density}\:\mathrm{of}\:\mathrm{the}\:\mathrm{following}\:\mathrm{elements} \\ $$$$\mathrm{K}\:\mathrm{0}.\mathrm{86}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \:\:\:\:\:\:\:\:\mathrm{Ca}\:\mathrm{1}.\mathrm{548}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \\ $$$$\mathrm{Sc}\:\mathrm{2}.\mathrm{991}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \:\:\:\:\:\mathrm{Rb}\:\mathrm{1}.\mathrm{532}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \\ $$$$\mathrm{Sr}\:\mathrm{2}.\mathrm{68}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \:\:\:\:\:\:\:\:\mathrm{Y}\:\mathrm{4}.\mathrm{34}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \\ $$$$\mathrm{Cs}\:?\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{Ba}\:\mathrm{3}.\mathrm{51}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{La}\:\mathrm{6}.\mathrm{16}\:\mathrm{g}/\mathrm{cm}^{\mathrm{3}}…