please explain

Asked by gpnkumar0 | 27th Feb, 2018, 10:23: PM

Expert Answer:

begin mathsize 16px style square root of 180 equals square root of 2 cross times 2 cross times 3 cross times 3 cross times 5 end root
equals 6 square root of 5
This space is space irrational space number.
To space make space it space rational space we space have space to space multiply space either space square root of 5 space or space 2 square root of 5
where space square root of 5 space or space 2 square root of 5 space are space irrational space numbers.
The space product space will space be
6 square root of 5 cross times square root of 5 equals 30 space is space rational space number.
6 square root of 5 cross times 2 square root of 5 equals 60 space is space rational space number.

end style

Answered by Sneha shidid | 28th Feb, 2018, 03:41: PM