Question

if a=√2;b=√8, both a and b are irrational then a×b is​

Answer 1

Answer:

4

Step-by-step explanation:

a×b=√2×√8=√8×2=√16=4

Answer 2

Answer:

4 is a rational number

Step-by-step explanation:

Given that :

a=√2 and b=√8

a×b=√2×√8

a×b=√(2×8)

a×b=√16

a×b=4

Hera ,a and b are irrational numbers

a×b is a rational number

we conclude that

if a and b are irrational numbers then their product is either a rational number or an irrational number.

√a×√b=√(ab)