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

Category: QuestionsWhat is y in \(\int_a^b\)f(y) dy called as?
Editor">Editor Staff asked 11 months ago

What is y in \(\int_a^b\)f(y) dy called as?
 
(a) Random variable
 
(b) Dummy symbol
 
(c) Integral
 
(d) Integrand
 
The question was asked during an online exam.
 
My doubt is from Definite Integral in portion Integrals of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

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.