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  1. If   √y = 4x, then
    x2
    		 is :
    y
    1. 2
    2. 1
      16
    3. 1
      4
    4. 4
Correct Option: D

√y = 4x ⇒ y = (4x)2 = 16x2

∴ 
x2
 =
x2
 =
1
y16x216


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