Y2CH1 Algebraic methods Flashcards
1
Q
How do you use proof by contradiction?
A
Assume the statement is not true and use logical steps to show that this assumption leads to something impossible
2
Q
Rational number can be expressed as a/b where a and b are integers whilst…
A
Irrational number cannot be expressed as a/b as integers
3
Q
What is partial fractions
A
When a fraction can be split into two or more separate fractions with unknown numerators and distinct denominators
4
Q
During partial fractions what must be done with a repeated factor
A
when writing the unknowns you must not use repeated factors at times
5
Q
How do you know you have an improper algebraic fractions
A
When the numerators degree of polynomial is equal or larger to the denominator
= number + remainder
6
Q
squared quantities can never be
A
NEGATIVE
7
Q
A
