Question

Rationalise: 2 by 7+4 root 3​

Answer 1

$\Large{\bf{\underline{\blue{Solution:-}}}}$

• Rationalize

→ 2/7 + 4√3

→ 2/7 + 4√3 × 7 - 4√3/7 - 4√3

→ 2(7 - 4√3)/(7)² - (4√3)²

→ 14 - 8√3/49 - 48

→ 14 - 8√3/1

→ 14 - 8√3

• Final answer
• 2/7 + 4√3 = 14 - 8√3