1]the value of 4√28÷3√7=----------------
2]the value of √12×√8=------------------
3]write a rational number between √2and√3
4]write a irrational number between √2and√3
5]which is smaller 5√10 or 4√9
6]simplify
a} (√5-√3)²
b}(3+√7)(2+√5)
c}(4√3+3√2)(4√3-3√2)