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1. x+3=x+3,

A. 3
B. 3
C. 3
D. 3

Answer: Option C

Explanation:

\sqrt{x + 3} = \sqrt{x} + \sqrt{3} \Rightarrow {(\sqrt{x + 3})}^{2} = {(\sqrt{x} + \sqrt{3})}^{2} [বর্গ করে] \Rightarrow x + 3 = {(\sqrt{x})}^{2} + 2 \sqrt{x} . \sqrt{3} + {(\sqrt{3})}^{2} \Rightarrow x + 3 - x - 3 = 2 \sqrt{x} . \sqrt{3} \Rightarrow 0^{2} = {(2 \sqrt{x} . \sqrt{3})}^{2} [বর্গ করে] \Rightarrow 0 = 4 . x . 3 \Rightarrow x = \frac{0}{12} \Rightarrow x = 0 Answer : 0

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