What is the mathematical expression for a function to be strictly incr – McqOptions

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1.	What is the mathematical expression for a function to be strictly increasing on (a,b)?
A.	x<sub>1</sub> < x<sub>2</sub> f(x<sub>1</sub>) < f(x<sub>2</sub>) x<sub>1</sub>, x<sub>2</sub> (a,b)
B.	x<sub>1</sub> < x<sub>2</sub> f(x<sub>1</sub>) f(x<sub>2</sub>) x<sub>1</sub>, x<sub>2</sub> (a,b)
C.	x<sub>1</sub> = x<sub>2</sub> f(x<sub>1</sub>) f(x<sub>2</sub>) x<sub>1</sub>, x<sub>2</sub> (a,b)
D.	x<sub>1</sub> = x<sub>2</sub> f(x<sub>1</sub>) < f(x<sub>2</sub>) x<sub>1</sub>, x<sub>2</sub> (a,b)
Answer» B. x<sub>1</sub> < x<sub>2</sub> f(x<sub>1</sub>) f(x<sub>2</sub>) x<sub>1</sub>, x<sub>2</sub> (a,b)

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