Q.
∫7x13+5x15x7+x2+13 equals
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a
x14x7+x2+12+C
b
x142x7+x2+12+C
c
x7x7+x2+12+C
d
x72x7+x2+12+C
answer is B.
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Detailed Solution
∫7x13+5x15x7+x2+13dx =∫7x13x7+x2+1−x147x6+2xx7+x2+13dx =∫ddxx142x7+x2+12dx =x142x7+x2+12+C
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