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Question Number 172692    Answers: 2   Comments: 0

Question Number 172688    Answers: 0   Comments: 4

(1+2+3+4)^2 =1^2 +2^2 +3^2 +4^2 right? (1+2+3+4)^2 =1^3 +2^3 +3^3 +4^3 right?

$$\left(\mathrm{1}+\mathrm{2}+\mathrm{3}+\mathrm{4}\right)^{\mathrm{2}} =\mathrm{1}^{\mathrm{2}} +\mathrm{2}^{\mathrm{2}} +\mathrm{3}^{\mathrm{2}} +\mathrm{4}^{\mathrm{2}} \:\:{right}? \\ $$$$\left(\mathrm{1}+\mathrm{2}+\mathrm{3}+\mathrm{4}\right)^{\mathrm{2}} =\mathrm{1}^{\mathrm{3}} +\mathrm{2}^{\mathrm{3}} +\mathrm{3}^{\mathrm{3}} +\mathrm{4}^{\mathrm{3}} \:\:{right}? \\ $$

Question Number 172687    Answers: 1   Comments: 3

Sum to n terms: 7+77+777+...

$$\mathrm{Sum}\:\mathrm{to}\:\mathrm{n}\:\mathrm{terms}: \\ $$$$\mathrm{7}+\mathrm{77}+\mathrm{777}+... \\ $$

Question Number 172681    Answers: 4   Comments: 0

Question Number 172662    Answers: 4   Comments: 0

Question Number 172653    Answers: 1   Comments: 0

Question Number 172651    Answers: 0   Comments: 0

Question Number 172636    Answers: 2   Comments: 0

Question Number 172635    Answers: 4   Comments: 0

Question Number 172632    Answers: 0   Comments: 6

Question Number 172631    Answers: 0   Comments: 3

Question Number 172628    Answers: 1   Comments: 2

Question Number 172613    Answers: 3   Comments: 0

min y=9 sin^2 x+ 4 csc^2 x + 3

$$\:\:\:{min}\:{y}=\mathrm{9}\:\mathrm{sin}\:^{\mathrm{2}} {x}+\:\mathrm{4}\:{csc}^{\mathrm{2}} {x}\:+\:\mathrm{3} \\ $$

Question Number 172612    Answers: 0   Comments: 0

Question Number 172611    Answers: 1   Comments: 0

Question Number 172610    Answers: 1   Comments: 0

Question Number 172609    Answers: 1   Comments: 0

Question Number 172608    Answers: 1   Comments: 0

Question Number 172607    Answers: 0   Comments: 0

Question Number 172606    Answers: 0   Comments: 0

Question Number 172605    Answers: 0   Comments: 0

Question Number 172604    Answers: 1   Comments: 0

Question Number 172603    Answers: 1   Comments: 0

Question Number 172602    Answers: 0   Comments: 0

Question Number 172601    Answers: 1   Comments: 0

Question Number 172600    Answers: 0   Comments: 0

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