Q. 864.5( 2 Votes )

# The function f(x) = cot x is discontinuous on the set

A.

B.

C.

D.

Answer :

We have,

Now, f(x) is discontinuous where sinx=0.

We know that sinx=0 at x = nπ, n ∈ Z

⇒ f(x) = cotx is discontinuous on the set {x = nπ : n ∈ Z}

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