Solution
We know that,
$$(a+b)^{2}=a^{2}+b^{2}+2\times{a}\times{b}$$.
Hence,
$$(1+\sqrt{6})^{2}=1+6+2\times{1}\times{\sqrt{6}}$$.
= $$7+2\sqrt{6}$$.
Hence, Option A is correct.
Get AI Help
Create a FREE account and get:
- Banking Quant Shortcuts PDF
- Free Banking Study Material - (15000 Questions)
- 135+ Banking previous papers with solutions PDF
- 100+ Online Tests for Free
