solution
... integer. Can n be odd? Assume n = 2k + 1. Then 2n = 22k+1 = 2x4k. We saw that 4k ends up with 4 or 6, which implies that 2x4k ends up with 8 or 2. However this contradicts our condition on 2n that it must have only 4 or 6 as a unit digit. Therefore n cannot be an odd number. Now rearrange the equali ...
... integer. Can n be odd? Assume n = 2k + 1. Then 2n = 22k+1 = 2x4k. We saw that 4k ends up with 4 or 6, which implies that 2x4k ends up with 8 or 2. However this contradicts our condition on 2n that it must have only 4 or 6 as a unit digit. Therefore n cannot be an odd number. Now rearrange the equali ...
Cn2 - ITWS
... Numeral 5 represents * * * * * or ! ! ! ! ! Numeral 5 represents a distinct value or idea. Roman Numerals were an important Number System! Numeral IV = # # # # Numeral XV = 15 ...
... Numeral 5 represents * * * * * or ! ! ! ! ! Numeral 5 represents a distinct value or idea. Roman Numerals were an important Number System! Numeral IV = # # # # Numeral XV = 15 ...
Integers and Rationals
... a/bxc/d is an integer if a/b and c/d are Commutative properties of Addition and Multiplication a/b+c/d=c/d+a/b a/bxc/d=c/dxa/b Associative Properties of Addition and multiplication a/b+(c/d+e/f)=(a/b+c/d)+e/f a/bx(c/dxe/f)=(a/bxc/d)xe/f Distributivity of Multiplication over Addition (and Subtr ...
... a/bxc/d is an integer if a/b and c/d are Commutative properties of Addition and Multiplication a/b+c/d=c/d+a/b a/bxc/d=c/dxa/b Associative Properties of Addition and multiplication a/b+(c/d+e/f)=(a/b+c/d)+e/f a/bx(c/dxe/f)=(a/bxc/d)xe/f Distributivity of Multiplication over Addition (and Subtr ...
2013年1月12日托福写作真题回忆
... 3. Division 4. Addition and subtraction a) Same denominators b) Different denominators ...
... 3. Division 4. Addition and subtraction a) Same denominators b) Different denominators ...
Mathematics HS
... simplistic statement may make students who are not planning to go to college ask why mathematics is necessary for them. While the ability to do computation is important, it is the skills of problem finding and problem solving along with developing abstract thinking, symbolic representation and inter ...
... simplistic statement may make students who are not planning to go to college ask why mathematics is necessary for them. While the ability to do computation is important, it is the skills of problem finding and problem solving along with developing abstract thinking, symbolic representation and inter ...
