A) 0.118
B) 0.92
C) 1.5
D) 1
Correct Answer: A
Solution :
\[x=\frac{{{(6.4)}^{2}}-{{(5.4)}^{2}}}{{{(8.9)}^{2}}+(8.9\times 2.2)+{{(1.1)}^{2}}}\] \[=\frac{(6.4-5.4)(6.4+5.4)}{{{(8.9+1.1)}^{2}}}\] \[=\frac{1\times 11.8}{{{(10)}^{2}}}=0.118\]
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