What is y in \(\int_a^b\)f(y) dy called as?

(a) Random variable

(b) Dummy symbol

(c) Integral

(d) Integrand

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My doubt is from Definite Integral in portion Integrals of Mathematics – Class 12

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1 Answers

Right answer is (b) Dummy symbol

For explanation: In \(\int_a^b\)f(y) dy ‘a’ is the called as lower limit and ‘b’ is called the upper limit of the integral. The fuction ‘f’ in \(\int_a^b\)f(y) dy is called the integrand. The letter ‘y’ is a dummy symbol and can be replaced by any other symbol.