1.

Evaluate \(\int_3^7\)2f(x)-g(x)dx, if \(\int_3^7\)f(x) = 4 and \(\int_3^7\)g(x)dx = 2.(a) 38(b) 12(c) 6(d) 7This question was addressed to me in a job interview.Enquiry is from Properties of Definite Integrals topic in chapter Integrals of Mathematics – Class 12

Answer»

The CORRECT choice is (C) 6

To elaborate: \(\int_3^7\)2F(x)-g(x)dx = 2 \(\int_3^7\)f(x)– \(\int_3^7\)g(x)dx

= 2(4) – 2

= 6



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