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I was born to answer lhfs.


May
21
answered Determine the inverse function of $f(x)=3^{x-1}-2$
May
21
comment The sum of irrationals is irrational?
@user17762 And there's a populist badge for ya.
May
20
revised Given $x,y,z\geq0$ and $x^2+y^2+z^2+x+2y+3z=13/4$. Find the minimum of $x+y+z$.
edited >= to ge symbol
May
20
comment Why is 987654321/123456789 = 8.0000000729?
Ah, gotcha. Nice answer.
May
20
comment Why is 987654321/123456789 = 8.0000000729?
Is it just me who is too stupid to understand what the pattern is?
May
20
comment Differentiate $\log_{10}x$
Hey Joe! Long time :-)
May
20
awarded  Popular Question
May
19
awarded  Nice Question
May
19
comment What is $-i$ exactly?
@Panda The answer by Thomas is very nice.
May
19
asked What is $-i$ exactly?
May
18
comment Prove every odd integer is the difference of two squares
Would the downvoter care to explain?
May
18
awarded  Constituent
May
13
comment Is it an abuse of notation to omit the leading zero in a decimal less than 1?
@Gustavo It's Marvis. Haha
May
10
comment
Jayesh has a yes from my side!
May
7
awarded  Caucus
Apr
21
comment An infinite fraction
Perfect observation. How'd you think of that?
Apr
19
revised With the binomial expansion of $ (3+x)^4$ express $(3 - \sqrt 2)^4$ in the form of $p+q\sqrt 2$
deleted 14 characters in body
Apr
19
revised Is the following statement true? Why?
added the important part
Apr
19
answered Is the following statement true? Why?
Apr
19
awarded  Cleanup