Question

write whether 2√45+3√20/2√5 on simplification gives an irrational or a rational number

Answer 1

Hlw mate!!


2√45+3√20/2√5;
=√5×[2√45+3√20/2√5];
=√5×(2√45+3√20/2)/2×(√5×√5);
=2√45·5+3√20·5/2×5;
=2√9·5·5+3√4·5·5/10;
=2√9·25+3√4·25/10;
=2×3×5+3×2×5/10;
=30+30/10;
=60/10;
=6



Hope it helpful

Answer 2

HOPE IT HELPS U IF YEAH PLZ MARK IT AS BRAINLIEST♥️✌️