MaxWong

Rly? Never heard of that!!

That means \(\displaystyle\int^{2}_{0}\int^{1}_{-1}x^2+y^2 dx dy\)

\(\displaystyle\int^{2}_{0}\int^{1}_{-1}x^2+y^2 dx dy\\ =\displaystyle\int^{2}_{0}\left[\dfrac{x^3}{3}+xy^2\right]^{1}_{-1}dy\\ =\displaystyle\int^{2}_{0}\left(\dfrac{2}{3}+2y^2\right)dy\\ =\left[\dfrac{2y}{3}+\dfrac{2y^3}{3}\right]^{2}_{0}\\ =\dfrac{20}{3}\)

3x + 2 = 5x

2 = 5x - 3x = 2x

2x = 2

x = 1

Infinity!!

Infinity is divisible by anything!!

This is an international forum......

I don't understand Spanish, at least. I am a Chinese.

Speak English, because it is most widely used around the Earth.

Use base change formula.

\(\log_415 = x\\ x = \dfrac{\ln 15}{\ln 4} \approx 1.953\)

I understand it as "taking away" 1/8 not "decreasing" 1/8.

Therefore answer = 24 - 1/8 = 23 7/8 = 23.875.

The sum of squares of the side lengths of 2 legs of a right triangle will equal to the square of the side length of the hypotenuse.

i.e.: \(a^2 + b^2 = c^2\)

where a and b are the lengths of the 2 legs and c is the length of hypotenuse.

Any right triangles satisfies this Theorem.

The number is 10y + x.

The tens digit means 'how many 10s' so multiply the tens digit by 10 and add the ones digit and then you get the answer.