Surds And Indices Flashcards
1
Q
Square root of a multiplied by square root of a =
A
a
2
Q
Square root of a multiplied by square root of b =
A
Square root of ab
3
Q
Square root of a divided by square root of b =
A
Square root of a/b
4
Q
Root 2 -1/root 2+1 rationalise the denominator
A
X root 2-1/root 2-1 = 3-2root2/1 = 3-2root2
5
Q
20root5 + 5root20 =
A
5root20 can be simplified to 10root5 so 20root5 + 10root5 = 30root5
6
Q
Am multiplied by An =
A
Am+n
7
Q
Am divided by An =
A
Am-n
8
Q
(Am)n =
A
Amn
9
Q
(AB)m =
A
Am x Bm
10
Q
A-n =
A
1/An
11
Q
A0=
A
1
12
Q
1/A1/n =
A
A-1/n
