Question

Section B-Short Answer Questions Typ

7. Add 3√2+2√5 and 2√2-√5.

8. Divide 8√15 by 2√3.

9. Rationalise the denominator of

10. Simplify: (i) (315)4

3-√7

(ii) 81/2 x 21/2.

11. Simplify: √y, it is given that y is a positive real number. Section C-Short Answer Questions Tyne 3+√5 3-√5

12. Simplify 13. If x= 3-√5 3+√5 √3+√2 and y = by rationalising the denominator. √3-√2 then find the value of x² + y².

√3-√2

√3+√2'

3

14. Find five rational numbers between 15. Locate √3 on the number line. 5 and

Section D-Long Answer Questions

16. Express the decimal 3-4121 in the form of 9n 2x(3-n/2)-2-27m then prove that m - n = 1.

17. If

33m x 23x10

27

18. If x= 5-√21, prove that x3 +​

Answer 1

Answer:

sorry i dont know

but your question is very toughf