Correct Answer - Option 2 : 784
Given:
\({√\frac{?} {3136} \space = \frac{1} {2}\space}\space\)
Calculation:
Let the missing number be x
Squaring both sides we get,
⇒ (√x/3136)2 = (1/2)2
⇒ x/3136 = 1/4
⇒ x = (3136/4)
⇒ x = 784
∴ The required value is 784