hellothere

17 Questions
6 Answers

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A problem I am very stuck on and need help!

Non-negative real numbers $a, b$ and $c$ satisfy $$a^2+b^2+c^2+70=35ab+7ac+5bc.$$
The least possible value of $a^2+2b^2+3c^2$ can be expressed as $\frac{m}{n}$ where $m$ and $n$ are relatively prime positive integers. FInd $m+n$
read more ..

hellothere Jul 27, 2021

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Please help!!!

View question - A question that I am stuck on and really need help. (0calc.com)

This is the link to the question

hellothere Jul 26, 2021

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A question that I am stuck on and really need help.

Non-negative real numbers $a, b,$ and $c$ satisfy $$a^2+b^2+c^2+70=35ab+7ac+5bc.$$ The least possible value of $a^2+2b^2+3c^2$ can be expressed as $\frac{m}{n},$ where $m$ and $n$ are relatively prime positive integers. FInd $m+n.$

So read more ..

hellothere Jul 26, 2021

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I really need help on this problem! Help!

Problem: In triangle ABC with incenter I and circumcenter O. Let P be the reflection of A over OI and Q be the second intersection of line OI with the circumcircle of BIC. Prove that lines AI, BC, and PQ concur.

So for this read more ..

hellothere Jul 15, 2021

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please answer! I need help

https://web2.0calc.com/questions/please-help-on-this-geometry-problem

hellothere Jul 5, 2021

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please answer!! I need help.

https://web2.0calc.com/questions/please-help_21628

hellothere Jul 5, 2021

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Please help!!!

Problem: Let ABC be a triangle with circumcenter O, orthocenter H, altitude AD, and median AM. THe line through H perpendicular to AM meets AM, BC at P, Q, respectively. Lines OA and OD meet the circumcircle of BOC again at T, R, respectively, and S is read more ..

hellothere Jul 5, 2021

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please help on this geometry problem!!!

Problem: In triangle ABC with incenter I and circumcenter O. Let P be the reflection of A over OI and Q be the second intersection of line OI with the circumcircle of BIC. Prove that lines AI, BC, and PQ concur.

So for this read more ..

hellothere Jul 5, 2021

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please help on this problem!

Let $ABC$ be an acute triangle with circumcenter $O$ and orthocenter $H.$ Let $E$ be the intersection of $BH$ and $AC$ and let $M$ and $N$ be the midpoints of $HB$ and $HO,$ respectively. Let $I$ be the incenter of $AEM$ and $J$ be the interseciton of $ME$ read more ..

hellothere Jul 3, 2021

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PLEASE HELP!!!

Problem: In triangle ABC with incenter I and circumcenter O. Let P be the reflection of A over OI and Q be the second intersection of line OI with the circumcircle of BIC. Prove that lines AI, BC, and PQ concur.

So for this read more ..

hellothere Jul 2, 2021

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A problem that I really need help on.

Problem: In triangle ABC with incenter I and circumcenter O. Let P be the reflection of A over OI and Q be the second intersection of line OI with the circumcircle of BIC. Prove that lines AI, BC, and PQ concur.

So for this read more ..

hellothere Jul 1, 2021

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HELP!!!!!

In Triangle ABC, points P and Q lie on sides AB and AC, respectively, such that the circumcircle of Triangle APQ is tangent to side BC at D. Let EE lie on side BCBC such read more ..

hellothere Jun 19, 2021

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HELP!!!!!

I really need help on these 2 geometry problems, it would be nice if someone can post solutions:

1. In Triangle ABC, points P and Q lie on sides AB and AC, respectively, such that the circumcircle read more ..

hellothere Jun 18, 2021

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I really need help on these 2 geometry problems

I really need help on these 2 geometry problems, it would be nice if someone can post solutions:

1. In Triangle ABC, points P and Q lie on sides AB and AC, respectively, such that the circumcircle read more ..

hellothere Jun 18, 2021

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Do you have a full solution? I really need help.

hellothereJul 13, 2021

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You are writing solution to a different problem

hellothereJul 3, 2021

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Is there a solution without inversion? I haven't learned it.

hellothereJul 3, 2021

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But I don't know what you mean by bc-inversion, since I have never studied inversion.

hellothereJun 19, 2021

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Is there a solution to problem 1 without inversion? I don't really know inversion, like is there an angle chasing solution? If so can you post a solution?

hellothereJun 18, 2021

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anyone?

hellothereJun 18, 2021