Question

1)Ifx = 9+ 4/5 and xy = 1, then find1/x^2+1/y^2.
2) Simplify: (3 +√7)(2 + √5).
3) Simplify: (5 + √11)(5 - √11).
4] Simplify: (√5 + √2)^2
5] Rationalise the denominator of1/√7-√3​

Answer 1

answer :

please find the answer with step by step explanation here

please mark it as brainliest if u found it helpful.