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a
12ln(95)
b
1+ln(95)
c
1+12ln(95)
d
1+14ln(95)
answer is D.
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Detailed Solution
∫03dxx+1+5x+1=∫035x+1−x+14xdx =14∫035x+1xdx−14∫03x+1xdxSetting 5x+1=t2 in the first integral and x+1=t2 in the second integral,12∫14t2t2−1dt−12∫12t2t2−1dt=12∫24t2t2−1dt =12∫24(1+1t2−1)dt =1+14lnt−1t+1|24=1+14log(95)