Question 1204911: MathLover1 has a reputation to provide incorrect solutions.
Here is one she posted recently:
https://www.algebra.com/tutors/students/your-answer.mpl?question=1204855
Can a tutor verify that it is, infact, correct?
Answer by ikleyn(52756)   (Show Source):
You can put this solution on YOUR website! .
The solution in the post by @MathLover1 is not, actually, her solution.
It is copy/paste of the solution from other web-site,
https://web2.0calc.com/questions/help_61560
She copied it from there, and pasted in this web-site
under her name without a reference to the source.
So, it would be INCORRECT to discuss if her solution is right,
because it is not her solution.
If you ask, if that solution is correct in the original web-site,
then my answer is: that solution starts from the statement
that angle FMP is 15°, where F is the perpendicular, drawn from point M to side BC.
This statement is correct, but its proof absents in the source.
It is, really, the KEY POINT to start the solution, but again, its proof ABSENTS in that source.
What follows in the source, is correct and leads to correct answer,
but formally the solution is incomplete.
If you ask me, how is it possible to copy from other web-site and from other author and then paste
under other name without a reference, I will answer - I don't know; from my point of view,
it is EXTREMALLY irrespective to everybody around, but @MathLover1 makes it REGULARLY.
Several times I pointed it in my posts, and she, with no doubts, saw it.
But she regularly ignores it, to my great regret.
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