A) 1
B) 2
C) 3
D) 4
Correct Answer: D
Solution :
\[\sqrt{\frac{{{(12.1)}^{2}}{{(8.1)}^{2}}}{{{(0.25)}^{2}}+(0.25)(19.95)}}\] \[=\sqrt{\frac{(12.1-8.1)(12.1+8.1)}{(0.25)(0.25+19.95)}}\] \[=\sqrt{\frac{4.\times 20.2}{0.25\times 20.2}}=\sqrt{\frac{4}{0.25}}=\sqrt{\frac{400}{25}}\] \[=\sqrt{16}=4\]You need to login to perform this action.
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