Question

PAGE NO
DATE:
1
Solve the following
& Rationalize the denominatos
77413
$4 \div 7 + 4 \sqrt{3}$
​

Answer 1

Answer:

28-16√3

Step-by-step explanation:

4/7+4√3 × 7-4√3 / 7-4√3 (rationalizing)

=4(7-4√3) / (7+4√3)(7-4√3) [(a-b) x (a+b) = a²-b²]

=28-16√3 / 7² - (4√3)²

=28-16√3 / 49 - 16x3

=28-16√3 / 49 - 48

==28-16√3