Question

Examine whether the following numbers are
rational or irrational :
(1) (3 - √5)2 (ii) (7 - √7) (7 + √7)
(iii) (2 √3 + 3 122
(iv) (2 √3 - 3 √2) (2 √3 +3√2)
(v) 5 √3 * √12
​

Answer 1

Answer:

ii),iv),v) rational

Step-by-step explanation:

i) irrational

ii) =49-7=42, rational

iii) irrational

iv) = 12-18=-6

rational

v)=5√36

=5×6

=30

rational