Examine whether the following numbers are rational or irrational. a) (√5+√2)² b) (3+√3) (3-√3)
Answers
Answered by
2
Answer:
a) Irrational
b) Rational
Step-by-step explanation:
a) Let 5+√2 be a rational number, ... Therefore,p,q are integers then (p-5q)/q is a rational number. Then √2 is also a rational number. But this contradicts the fact that √2 is an irrational number.
b) Therefore, (3-√3)(3+√3) is a rational number.
Similar questions