Which of the following expressions are undefined-1-1-51-5-55-08-5-1

The correct options are B 1/5 5 C 5/ 0Division by zero is not defined. (i) 1/5 5 = 1/0⇒ Not defined (ii) 5/ 0 =5/0 nbsp;⇒ Not defined nbsp; nbsp; n ...

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Byju's Answer

Standard VI

Mathematics

Division by Zero

Which of the ...

Question

Which of the following expressions are undefined?

\frac{1 - 1}{5}

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\frac{1}{5 - 5}

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\frac{5}{- 0}

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\frac{8}{5 - 1}

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Solution

The correct options are
B $\frac{1}{5 - 5}$
C $\frac{5}{- 0}$
Division by zero is not defined.

$(i) \frac{1}{5 - 5} = \frac{1}{0} \Rightarrow$ Not defined

$(i i) \frac{5}{- 0} = \frac{5}{0} \Rightarrow$ Not defined
$(∵ - 0 = + 0 = 0)$

$(i i i) \frac{1 - 1}{5} = \frac{0}{5} = 0$

$(i v) \frac{8}{5 - 1} = \frac{8}{4} = 2$

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$[5 \frac{1}{4} - \frac{2}{5} \times 5 \frac{5}{9} + (\frac{1}{2} + \frac{3}{4})]$ is equal to:

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Which of the following expressions are undefined?

The correct options are B 15−5 C 5−0Division by zero is not defined. (i)15−5=10⇒ Not defined (ii)5−0=50⇒ Not defined (∵−0=+0=0) (iii)1−15=05=0 (iv)85−1=84=2