Daily Math · 2026-06-09

Question 1

The area of a triangle with sides $5$, $6$, $7$ is closest to:

Accepted Answer

$14.7$

Answer

$10$

Answer

$12$

Answer

$21$

Question 2

The value of $\arccos\!\left(\cos\dfrac{2\pi}{3}\right)$ is:

Accepted Answer

$\dfrac{2\pi}{3}$

Answer

$-\dfrac{2\pi}{3}$

Answer

$\dfrac{\pi}{3}$

Answer

$\dfrac{4\pi}{3}$

Question 3

Evaluate $\int_0^1 \frac{\ln(1+x)}{1+x^2}\,dx$

Accepted Answer

$\dfrac{\pi \ln 2}{8}$

Answer

$\dfrac{\pi \ln 2}{4}$

Answer

$\dfrac{\pi \ln 2}{16}$

Answer

$\dfrac{\pi^2 \ln 2}{8}$

Answer

$\dfrac{\ln 2}{2}$

Answer

$\dfrac{\pi}{8}$