Real no. Flashcards
(8 cards)
1
Q
Fundamental theorem of arithmetic
A
Every composite no. Can be expressed as a product of primes, is unique except the order in which they occur.
2
Q
HCF
A
. Product of the smallest power of the common primes
3
Q
Lcm
A
Product of the greatest power of the primes
4
Q
Hcf * LCm
A
HCF into lcm is = a*b
5
Q
If p is a prime no.
A
If p divides a^2 then p divides a where a is a positive integer
6
Q
/2
A
Root 2 is irrational
7
Q
Terminating decimal expansion
A
X=p/q where pand q are Coprimes and 9=2m x5n
8
Q
Non terminating repeatingdecivial expansion
A
X = p/q where q is not of the form 2mx5n