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Question Number 211127    Answers: 0   Comments: 7

Two circles are assumed that have the same center. How many circles are there that are tangent to both circles and pass through the assumed point?

$$ \\ $$Two circles are assumed that have the same center. How many circles are there that are tangent to both circles and pass through the assumed point?

Question Number 211122    Answers: 1   Comments: 0

Is there a special rule for divisibility of four-digit numbers by 13?

$$ \\ $$Is there a special rule for divisibility of four-digit numbers by 13?

Question Number 211118    Answers: 0   Comments: 3

Question Number 211115    Answers: 1   Comments: 0

Question Number 211105    Answers: 2   Comments: 0

Question Number 211104    Answers: 0   Comments: 0

Question Number 211099    Answers: 3   Comments: 0

Question Number 211103    Answers: 0   Comments: 0

Question Number 211079    Answers: 1   Comments: 0

Question Number 211075    Answers: 2   Comments: 0

sin (θ+φ)=θ sin θ=φ find θ and φ.

$$\mathrm{sin}\:\left(\theta+\phi\right)=\theta \\ $$$$\mathrm{sin}\:\theta=\phi \\ $$$${find}\:\theta\:{and}\:\phi. \\ $$

Question Number 211058    Answers: 1   Comments: 1

Question Number 211049    Answers: 0   Comments: 0

someone please try question 204666

$$\mathrm{someone}\:\mathrm{please}\:\mathrm{try}\:\mathrm{question}\:\mathrm{204666} \\ $$

Question Number 211043    Answers: 2   Comments: 0

Question Number 211029    Answers: 2   Comments: 0

Question Number 211020    Answers: 1   Comments: 0

Question Number 211019    Answers: 1   Comments: 0

Question Number 211018    Answers: 1   Comments: 1

Question Number 211008    Answers: 0   Comments: 4

Question Number 211006    Answers: 1   Comments: 0

Question Number 210996    Answers: 2   Comments: 0

Question Number 211016    Answers: 3   Comments: 1

Question Number 211004    Answers: 0   Comments: 0

Question Number 211001    Answers: 0   Comments: 5

Question Number 210989    Answers: 1   Comments: 0

prove tan(72^° )=tan(66^° )+tan(36^° )+tan(6^° )

$${prove}\:{tan}\left(\mathrm{72}^{°} \right)={tan}\left(\mathrm{66}^{°} \right)+{tan}\left(\mathrm{36}^{°} \right)+{tan}\left(\mathrm{6}^{°} \right)\:\: \\ $$

Question Number 210987    Answers: 1   Comments: 0

Question Number 210974    Answers: 2   Comments: 0

(√(25))

$$\sqrt{\mathrm{25}} \\ $$

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