Question

Rationalize the
denominator
4 upon √7 = 4 upon √7 ​

Answer 1

Answer:

$\frac{4\sqrt{7} }{7}$(denominator has been rationalised )

Step-by-step explanation:

$\frac{4}{\sqrt{7} }$

= $\frac{4}{\sqrt{7} }$ * $\frac{\sqrt{7}}{\sqrt{7} }$

= $\frac{4*\sqrt{7} }{\sqrt{7} *\sqrt{7}}$

= $\frac{4\sqrt{7} }{7}$  , now the denominator has been rationalised