Question 18
Determine the angles of the triangle whose sides $a$, $b$ and $c$ satisfy the equality
$$
a - 4\sqrt{bc} + 2b = 2\sqrt{ac} - 3c.
$$
$$
a - 4\sqrt{bc} + 2b = 2\sqrt{ac} - 3c.
$$
MathNet 2009-part-03 — 175 problems (EN–VI) Question 18
Math Olympiad Vault · MathNet 2009-part-03 — 175 problems (EN–VI)