Question

$\sqrt{x^{2} +1} -4=0$

Answer 1

Answer:

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Answer 2

$\underline{\sf Given :-}$

• √[ x² + 1 ] - 4 = 0

$\underline{\sf To \ Find :- }$

• The value of x .

$\underline{\sf Answer :- }$

The given equation is ,

• √{ x² + 1 } - 4 = 0
• √{ x² + 1 } = 4
• x² + 1 = 4²
• x² + 1 = 16
• x² = 16 -1
• x² = 15
• x = √15