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Category: Geometry

Find-the-nth-term-of-the-sequence-1-1-3-1-15-1-35-1-63-1-99-2-1-2-1-6-1-12-1-20-1-30-

Question Number 12267 by tawa last updated on 17/Apr/17 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{nth}\:\mathrm{term}\:\mathrm{of}\:\mathrm{the}\:\mathrm{sequence} \\ $$$$\left.\mathrm{1}\right)\:\:\:\frac{\mathrm{1}}{\mathrm{3}}\:,\:\frac{\mathrm{1}}{\mathrm{15}}\:,\:\frac{\mathrm{1}}{\mathrm{35}}\:,\:\frac{\mathrm{1}}{\mathrm{63}}\:,\:\frac{\mathrm{1}}{\mathrm{99}} \\ $$$$\left.\mathrm{2}\right)\:\:\:\:\frac{\mathrm{1}}{\mathrm{2}},\:\frac{\mathrm{1}}{\mathrm{6}},\:\frac{\mathrm{1}}{\mathrm{12}},\:\frac{\mathrm{1}}{\mathrm{20}},\:\frac{\mathrm{1}}{\mathrm{30}} \\ $$ Answered by ajfour last updated on 17/Apr/17 $$\left.\mathrm{1}\right)\:\:{T}_{{n}} =\frac{\mathrm{1}}{\mathrm{4}{n}^{\mathrm{2}}…

Determinant-method-can-be-used-to-solve-the-system-below-if-yes-solve-by-determinant-method-and-if-no-solve-by-another-method-x-y-z-8-2x-y-2z-3-give-clear-reason-for-your-answer-

Question Number 12265 by frank ntulah last updated on 17/Apr/17 $${Determinant}\:{method}\:{can}\:{be}\:{used}\:{to}\:{solve} \\ $$$${the}\:{system}\:{below}?,\:\mathrm{if}\:\mathrm{yes}\:\mathrm{solve}\:\mathrm{by}\:\mathrm{determinant}\:\mathrm{method}\:\mathrm{and} \\ $$$$\:\mathrm{if}\:\mathrm{no}\:\mathrm{solve}\:\mathrm{by}\:\mathrm{another}\:\mathrm{method} \\ $$$$\:\:\:\:\:\:\:\:\: \\ $$$${x}+{y}−{z}=\mathrm{8} \\ $$$$\mathrm{2}{x}+{y}−\mathrm{2}{z}=\mathrm{3} \\ $$$$\left({give}\:{clear}\:{reason}\:{for}\:{your}\:{answer}\right) \\ $$…

Question-12148

Question Number 12148 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 14/Apr/17 Commented by b.e.h.i.8.3.4.1.7@gmail.com last updated on 14/Apr/17 $${OA}={OC}={OD}={OB}={R},{OE}=\frac{\sqrt{\mathrm{2}}}{\mathrm{2}} \\ $$$${BE}\bot{ED},{FG}\bot{CD},{FH}\bot{AB},\measuredangle{OEB}=\measuredangle{OED}. \\ $$$${find}:\:\:{HE}\:\:{and}\:{EG}\:{in}\:{term}\:{of}\::\:{R} \\ $$ Commented by…

Question-77681

Question Number 77681 by mr W last updated on 09/Jan/20 Commented by mr W last updated on 09/Jan/20 $${The}\:{radii}\:\boldsymbol{{a}},\:\boldsymbol{{b}},\:\boldsymbol{{c}}\:{are}\:{given}. \\ $$$$\mathrm{1}.\:{Find}\:{radius}\:\boldsymbol{{R}}\:{of}\:{the}\:{circumcircle} \\ $$$$\mathrm{2}.\:{Find}\:{radius}\:\boldsymbol{{d}}\:{of}\:{the}\:{fourth}\:{circle} \\ $$…

a-cube-has-a-rib-ABCD-EFGH-the-midle-point-P-on-BF-so-that-BP-PF-and-the-midle-point-Q-on-FG-so-that-FQ-QG-how-long-projection-point-C-to-APQH-field-

Question Number 12131 by Peter last updated on 14/Apr/17 $${a}\:{cube}\:{has}\:{a}\:{rib}\:{ABCD}.{EFGH},\:{the}\:{midle}\:{point}\:{P}\:\:{on}\:{BF}\:{so}\:{that}\:{BP}\:=\:{PF}, \\ $$$${and}\:{the}\:{midle}\:{point}\:{Q}\:{on}\:{FG}\:{so}\:{that}\:{FQ}\:=\:{QG} \\ $$$${how}\:{long}\:{projection}\:{point}\:{C}\:{to}\:{APQH}\:{field}\:? \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Find-the-remainder-when-x-x-25-x-49-x-81-is-divided-by-x-3-1-

Question Number 77655 by TawaTawa last updated on 08/Jan/20 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{remainder}\:\mathrm{when}\:\:\:\:\mathrm{x}\:+\:\mathrm{x}^{\mathrm{25}} \:+\:\mathrm{x}^{\mathrm{49}} \:+\:\mathrm{x}^{\mathrm{81}} \:\:\mathrm{is}\:\mathrm{divided} \\ $$$$\mathrm{by}\:\:\mathrm{x}^{\mathrm{3}} \:−\:\mathrm{1} \\ $$ Commented by jagoll last updated on 08/Jan/20…