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Why isnt subtraction commutative?
Example: a - b = b-a, So lets say a=2 b=3. 2-3=3-2 -1 =/= 1
Circumference of an oval?
There is no simple answer: in fact the search for the answer led to the study of elliptical integrals.C = 2*pi*a*{1 - [1/2]^2*e^2 + [(1*3)/(2*4)]^2*e^4/3 - [(1*3*5)/(2*4*6)]^2*e^6/5 + ... }wherea is the semi-major axis,b is the semi-minor axis, ande is the eccentricity = sqrt{(a^2 - b^2)/a^2}.The above infinite series converges very slowly.An approximation, suggested by Ramanujan, isC = pi*{3(a + b) - sqrt[(3a + b)*(a +3b)]} = pi*{3(a + b) - sqrt[10ab + 3(a^2 + b^2)]}
What is 1 over x 3 over a 2 over b?
b/6
What is the number of sides in an argument?
A-B-C as easy as 1-2-3 as simple as DO-RE-MEI A-B-C 1-2-3 baby you and me girl!! WOOOH!! :D
What is 2and 1 half divided by 2 thirds?
2 and 1 half = 2,5 2 thirds = 2/3 We use fraction flipping here, e.g.: a/(b/c) = a*(c/b) 2,5 / (2/3) = 2,5 * 3/2 = 7,5/2 = 3,75
