Daily Math · 2026-06-10

Question 1

Determine $a \in \mathbb{R}$ so that $A(1, 2)$, $B(3, 4)$, and $C(a, 5)$ are collinear.

Accepted Answer

$4$

Answer

$2$

Answer

$3$

Answer

$5$

Question 2

The area of an equilateral triangle with side $a = 6$ equals:

Accepted Answer

$9\sqrt{3}$

Answer

$9$

Answer

$6\sqrt{3}$

Answer

$18$

Question 3

The solution of $\log_2(2x^2 + x + 1) - \log_2(x^2 - x + 2) = 1$ is:

Accepted Answer

$\{1\}$

Answer

$\{-1\}$

Answer

$\{1, -3\}$

Answer

No real solution