Question

Please give correct answer​

Answer 1

Given Question:-

$\sf{\sqrt{ 1 + \dfrac{x}{144} } = \dfrac{13}{12} }$

Find x?

Required Answer:-

Squaring both sides,

⇒ (√1 + x/144)² = (13/12)²

⇒ 1 + x/144 = 169/144

Subtracting 1 from both sides,

⇒ x/144 = 169/144 - 1

⇒ x/144 = 169-144/144

⇒ x/144 = 25/144

Comparing both sides (Denominator = 144)

⇒ x = 25 (C)

Extra tips:

• Always square both sides, if you see a square root to simplify the equation.

Answer 2

Answer:

Given Question:-

Step-by-step explanation:

$\huge\sqrt{1 + \frac{x}{144} }$

Find x?

Required Answer:-

Squaring both sides,

⇒ (√1 + x/144)² = (13/12)²

⇒ 1 + x/144 = 169/144

Subtracting 1 from both sides,

⇒ x/144 = 169/144 - 1

⇒ x/144 = 169-144/144

⇒ x/144 = 25/144

Comparing both sides (Denominator = 144)

⇒ x = 25 (C)

Extra tips:

Always square both sides, if you see a square root to simplify the equation.