RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 21. Areas of Bounded Regions

Subject: Maths - Class 12th

Q. No. 1 of MCQ

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1

If the area above the x-axis, bounded by the curves y = 2kx and x = 0, and x = 2 is then the value of k is

The area can be computed as –






Comparing with



4k = 3k + 1


Using Binomial Theorem,




This equality holds only when k = 1, because only then you get two terms in the expansion.


Ans: k = 1

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