Question

The value of \(\int_1^2\)1y^5 dy is_____

(a) 10.5

(b) 56

(c) 9

(d) 23

This question was addressed to me by my college director while I was bunking the class.

The origin of the question is Definite Integral topic in section Integrals of Mathematics – Class 12

Answer 1

Right answer is (a) 10.5

The explanation is: \(\int_1^2\)1y^5 dy = (y^6/6)^21

= \(\frac {64}{6} – \frac{1}{6}\)

= 10.5