RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 17. Increasing and Decreasing Functions

Subject: Maths - Class 12th

Q. No. 9 of Exercise 17.1

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9

Without using the derivative show that the function f(x) = 7x - 3 is strictly increasing function on R.

Given,

f(x) = 7x – 3


Lets , R and


7> 7


7> 7



f(x) is strictly increasing on R.


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