Question types

Continuity (p-1) question types

23 questions across 5 question groups — pick any mix to generate a Maths (commerce) paper with step-by-step answer keys.

23
Questions
5
Question groups
5
Question types
Sample Questions

Continuity (p-1) questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Find a and b if following functions are continuous at the point indicated against them.

$
\begin{aligned}
& f(x)=\frac{x^2-9}{x-3}+a, \text { for } x>3 \\
& =5, \text { for } x=3 \\
& =2 x^2+3 x+b, \text { for } x<3
\end{aligned}
$
is continuous at $x=3$

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Find k if following functions are continuous at the points indicated against them.

\begin{aligned}
& \mathrm{f}(\mathrm{x})=(1+k x)^{\frac{1}{x}}, \text { for } \mathrm{x} \neq 0 \\
& =e^{\frac{3}{2}}, \text { for } \mathrm{x}=0, \text { at } \mathrm{x}=0
\end{aligned}

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Find a and b if following functions are continuous at the point indicated against them.

$
\begin{aligned}
& f(x)=\frac{32^x-1}{8^x-1}+a, \text { for } x>0 \\
& =2, \text { for } x=0 \\
& =x+5-2 b, \text { for } x<0
\end{aligned}
$
is continuous at $x=0$

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Find k if following functions are continuous at the points indicated against them.

\begin{aligned}
& f(x)=\frac{45^x-9^x-5^x+1}{\left(k^x-1\right)\left(3^x-1\right)} \text { for } x \neq 0 \\
& =\frac{2}{3} \text { for } x=0, \text { at } x=0
\end{aligned}

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Find k if following functions are continuous at the points indicated against them.

\begin{aligned}
& f(x)=\left(\frac{5 x-8}{8-3 x}\right)^{\frac{3}{2 x-4}} \text { for } x \neq 2 \\
& =k \text { for } x=2 \text { at } x=2
\end{aligned}

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