π is exact but the value of π is not exact, how?
2006-09-13 23:44:55 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The value is exact if the value does not chage. The value is appoximate if we cannot specifiy exactly for example. The value of all the irrational numbers in decimal form are approximate. We can go closer to exact value but cannot be
pi is exact as by definition it is 4*arctan(1)
value of pi is also exact but not in decimal or rational form
we can say 3.1,3.14, 22/7 all are approximate value of Pi
2006-09-14 00:27:21 · answer #1 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
An approximate value is (1) close enough to the exact value to not matter for whatever particular use you intend, and (2) a lot easier to work with than the exact value. With an approximation like 3.14, or 22/7, or 3.1416, or 355/113 (that one is my favourite), you can do calculations that come out close enough to being correct. With the exact value 4*arctan(1), you can admire it but not really do anything, unless you use an approximation for arctan(1) which would put us back where we started.
2006-09-14 08:08:46 · answer #2 · answered by bh8153 7 · 0⤊ 0⤋
Exact number are even and odd numbers.they are always exact & approximate numbers are numbers which lies between some digits like 1-2
2006-09-14 06:51:51 · answer #3 · answered by Anonymous · 0⤊ 1⤋
approximate is about... say you have exactly 280 ml of something. so, others may say its approximately 300...
i take allied health and we're on this.
2006-09-14 06:47:20 · answer #4 · answered by misery 7 · 0⤊ 0⤋
Simple Example:
X= 10, exact.
X= ±10, approx.
X is var.
2006-09-14 06:55:57 · answer #5 · answered by Anonymous · 0⤊ 1⤋
One is, and the other almost is.
2006-09-14 06:52:42 · answer #6 · answered by kitty fresh & hissin' crew 6 · 1⤊ 0⤋