Question

Which is the example for product of 2 irrational number is irrational?

a. √ZX √Z
b. √ZX √3
c. 2X √2
d. (√2+1)(√2-1)

Which is the example for product of 2 irrational number is rational?

a. (√2+1) X √2
b. (√2+1)X(√3+1)
c. (√2+1) (√2+1)
d.(√2+1)(√2-1)​

Answer 1

Answer:

1. option c beacuse

$2 \times \sqrt{2 } \: \: \: is \: 2 \sqrt{2}$

2 root 2 is irrational number

2.c

Answer 2

for 1st

option (c)

for 2nd

option (c)