Question

Rationalise this please........it's verey imp to me....​

Answer 1

Step-by-step explanation:

i) root3 + root5 × 2root5 / 2root5 × 2root5

= 2root15 + 10 / 20

ii) root3 - root7 × root3 - root7 / root3 + root7 × root3 - root7

= 3 - 2root21 + 7 / 3 - 7

= 10 - 2root21 / -4

= -10 - 2root21 / 4

iii) root2 + root7 × 2root2 + root3 / 2root2 - root3 × 2root2 + root3

= 4 + 2root14 + root6 + root21 / 8 - 3

= 4 + 2root14 + root6 + root21 / 5