YehChi

$${2}\frac{2}{3}-{1}\frac{6}{11}


=6/3+2/3-(11/11+6/11)

=8/3-17/11

=37/33$$

1.79769313*10^308

$$-5(3x-2)=-2x-3x-20

-15x+10+2x+3x+20=0

-10x+30=0

-10x=-30

x=3$$

Very cool picture..

$$S=4\pi r^2=36\pi

r^2=9

r=3

V=4\pi r^2/3=36\pi cm^3$$

Melody,You are too complicated...

$$lny=ln(e+1)^3+\(\frac{1}{2}(x+1)-ln(x+2)-2ln(sin(3x+2))

\(\frac{y'}{y}=0+\(\frac{1}{2(x+1)}-\(\frac{1}{x+2}-\(\frac{2cos(3x+2)3}{sin(3x+2)}

y'=y[\(\frac{1}{2(x+1)}-\(\frac{1}{x+2}-\(\frac{6cos(3x+2)}{sin(3x+2)}]

y'=\(\frac{(e+1)^3\sqrt{x+1}}{(x+2)sin^2(3x+2)}[\(\frac{1}{2(x+1)}-\(\frac{1}{x+2}-6cot(3x+2)]$$

I thought he would give me Score..

Sorry, my English is not very good, can not understand such a long sentence.

I replaced with pictures.

1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1=19