okay i need an equation that looks difficult but in the end x simply ends up being zero. any suggestions?
2006-10-25 11:13:29 · 5 answers · asked by Teresa C 1 in Science & Mathematics ➔ Mathematics
4x^2 + 2x+ 15 = 15
2006-10-25 11:16:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The following equation evaluates to zero:
(a - x) * (b - x) * (c - x) * ... * (z - x) = ?
Notice that it has the term (x - x) which is zero, so the product is zero.
Another equation that evaluates to zero:
x = 1 + e^(i*pi)
Other choices:
x^6 + 27x^5 + 8x^4 + x^3 - 4x^2 + 31x + 3 = pi^0 + 0! + sin(pi / 2)
2006-10-25 11:15:32 · answer #2 · answered by Puzzling 7 · 0⤊ 0⤋
A variation of Puzzling's example is to simplify:
( x - a ) ( x^2 - b^2 ) ( x^3 - c^3 ) ... ( x^26 - z^26 )
I have seen many math majors struggle with this!
2006-10-25 11:39:28 · answer #3 · answered by p_ne_np 3 · 0⤊ 0⤋
lim (x->infinity) 1/e^x
2006-10-25 11:19:30 · answer #4 · answered by buaya123 3 · 0⤊ 0⤋
(2x*5)(3x*5)(9x*5)(4x*2)=(36x)(250)
2006-10-25 11:16:47 · answer #5 · answered by JV 3 · 0⤊ 0⤋