2006-11-03 18:48:24 · 3 answers · asked by harsh_bkk 3 in Science & Mathematics ➔ Mathematics
This is an oldie: What's i^i, where i = sqrt(-1)? Ans: By Euler's formula, we know that e^pi i = -1. Therefore e^(1/2) pi i = i, or e^-(1/2) pi = i^i = 0.20788.
2006-11-03 19:04:58 · answer #1 · answered by Scythian1950 7 · 0⤊ 0⤋
Here's a "brain teaser" that nobody can solve:
Suppose that we have a whole number, n, (base 10, yes)
satisfying the following 2 conditions:
1). It is a square
2). Its only digits are 0 and 1.
Question: Must n be a power of 10?
2006-11-04 11:05:41 · answer #2 · answered by steiner1745 7 · 0⤊ 0⤋
the Rubik's cube ,its actually quiet easy if you know how to do it,i would share with you the secret but you kind of need to see it visually
here's another one
how many sides does a circle have?
two,one on the inside ,one on the outside
2006-11-04 05:59:35 · answer #3 · answered by mylostpets 2 · 0⤊ 0⤋