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B
0.2078
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C
1.1039
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D
2.1039
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Solution
The correct option is C1.1039 We have to find the value of 3a−√4a2−4a+1 Now, 4a2−2a−2a+1 =2a(2a−1)−(2a−1) =(2a−1)(2a−1)=(2a−1)2 3a−√(2a−1)2=3a−2a+1=a+1 =0.1039+1=1.1039