JEE Previous Year Questionlimn→∞n1(e1/n1+e2/n1+e3/n1+…+e21)=Topic: JEE PYQAnswer: A. Full step-by-step solution below.A1−e−2B1+e−2Ce2−1De2+1Correct answer: ASolution(a) limh→∞n1(e1/n1+e2/n1+e3/n1+…+e21)=limh→∞n1∑k=12nek/n1=∫02ex1dx=∫02e−xdx=(−e−x)02=−e−2+e0=1−e−2.More Indefinite Integration PYQsIf ∫x71−x4dx=f(x)(1−x4)n+C, then…∑1+2cos5xcos7x−cos8xdx=If…If x=1 and…∑4cos2x−5sin2xcosxdx=