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 $m+n$
прочитайте больше ..

hellothere 27 июл. 2021 г.

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311

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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 26 июл. 2021 г.

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329

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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 прочитайте больше ..

hellothere 26 июл. 2021 г.

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414

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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 прочитайте больше ..

hellothere 15 июл. 2021 г.

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325

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please answer! I need help

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

hellothere 5 июл. 2021 г.

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350

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please answer!! I need help.

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

hellothere 5 июл. 2021 г.

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411

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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 прочитайте больше ..

hellothere 5 июл. 2021 г.

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498

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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 прочитайте больше ..

hellothere 5 июл. 2021 г.

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447

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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 $ME$ прочитайте больше ..

hellothere 3 июл. 2021 г.

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402

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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 прочитайте больше ..

hellothere 2 июл. 2021 г.

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378

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+58

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 прочитайте больше ..

hellothere 1 июл. 2021 г.

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423

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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 прочитайте больше ..

hellothere 19 июн. 2021 г.

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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 прочитайте больше ..

hellothere 18 июн. 2021 г.

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484

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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 прочитайте больше ..

hellothere 18 июн. 2021 г.

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-1

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

hellothere13 июл. 2021 г.

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You are writing solution to a different problem

hellothere3 июл. 2021 г.

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

hellothere3 июл. 2021 г.

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

hellothere19 июн. 2021 г.

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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?

hellothere18 июн. 2021 г.

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anyone?

hellothere18 июн. 2021 г.