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GeometryQuestion and Answers: Page 66

Question Number 124021 Answers: 0 Comments: 2

Question Number 123843 Answers: 1 Comments: 1

Question Number 123809 Answers: 0 Comments: 0

((log2)/1^2 )−((log3)/2^2 )+((log4)/3^2 )−((log5)/4^2 )+...

$$\frac{{log}\mathrm{2}}{\mathrm{1}^{\mathrm{2}} }−\frac{{log}\mathrm{3}}{\mathrm{2}^{\mathrm{2}} }+\frac{{log}\mathrm{4}}{\mathrm{3}^{\mathrm{2}} }−\frac{{log}\mathrm{5}}{\mathrm{4}^{\mathrm{2}} }+... \\ $$

Question Number 123806 Answers: 0 Comments: 5

Question Number 123717 Answers: 0 Comments: 0

Question Number 123708 Answers: 2 Comments: 1

Question Number 123697 Answers: 1 Comments: 1

Question Number 123393 Answers: 2 Comments: 6

find the equations of [two] circles which thier center both (2,−2) and tangent with circle x^2 + y^2 −8x + 10y + 5 = 0

$${find}\:{the}\:{equations}\:{of}\:\left[{two}\right]\:{circles} \\ $$$${which}\:{thier}\:{center}\:{both}\:\left(\mathrm{2},−\mathrm{2}\right) \\ $$$${and}\:{tangent}\:{with}\:{circle} \\ $$$${x}^{\mathrm{2}} \:+\:{y}^{\mathrm{2}} \:−\mathrm{8}{x}\:+\:\mathrm{10}{y}\:+\:\mathrm{5}\:=\:\mathrm{0} \\ $$

Question Number 122974 Answers: 0 Comments: 0

Σ_(k=1) ^∞ ((tan(k))/k)

$$\underset{{k}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{{tan}\left({k}\right)}{{k}} \\ $$

Question Number 123027 Answers: 2 Comments: 1

Question Number 122513 Answers: 0 Comments: 1

Question Number 122467 Answers: 1 Comments: 1

(1/(π^2 −1))+(1/(4π^2 −1))+(1/(9π^2 −1))+(1/(16π^2 −1))+....

$$\frac{\mathrm{1}}{\pi^{\mathrm{2}} −\mathrm{1}}+\frac{\mathrm{1}}{\mathrm{4}\pi^{\mathrm{2}} −\mathrm{1}}+\frac{\mathrm{1}}{\mathrm{9}\pi^{\mathrm{2}} −\mathrm{1}}+\frac{\mathrm{1}}{\mathrm{16}\pi^{\mathrm{2}} −\mathrm{1}}+.... \\ $$

Question Number 122399 Answers: 2 Comments: 1

Question Number 122056 Answers: 1 Comments: 2

Question Number 122055 Answers: 1 Comments: 0

Question Number 121985 Answers: 0 Comments: 1

Σ_(n=1) ^∞ (1/(n (((4n)),((2n)) )))

$$\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{1}}{\mathrm{n}\begin{pmatrix}{\mathrm{4n}}\\{\mathrm{2n}}\end{pmatrix}} \\ $$

Question Number 121802 Answers: 1 Comments: 2

Question Number 121615 Answers: 0 Comments: 6

Question Number 121553 Answers: 2 Comments: 1

Question Number 121539 Answers: 3 Comments: 1

Question Number 121337 Answers: 0 Comments: 3

Question Number 121330 Answers: 1 Comments: 2

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Question Number 120946 Answers: 1 Comments: 0

Question Number 120895 Answers: 1 Comments: 3

Question Number 120868 Answers: 0 Comments: 0

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