If and , then is discontinuous…

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

If

f(x)=\frac{x+1}{x-1}

and

g(x)=\frac{1}{x-2}

, then

(f\circ g)(x)

is discontinuous at (1)

x=3

only (2)

x=2

only (3)

x=2

and

x=3

only (4)

x=1

only

Related theory

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