Question
Is (i) $1 \div a=1$ ?
(ii) $a \div(-1)=-a$ ? for any integer $a$.
Take different values of a and check.
(ii) $a \div(-1)=-a$ ? for any integer $a$.
Take different values of a and check.
✓
Answer
(i) Let $a=5$, so $1 \div a=1 \div 5=\frac{1}{5} \neq 1$
So, first statement is not true.
(ii) Let $a=3$, so $a \div (-1)=3 \div (-1)=-(3 \div1)=-3$
So, $a \div (-1)=-a$ is true.
So, first statement is not true.
(ii) Let $a=3$, so $a \div (-1)=3 \div (-1)=-(3 \div1)=-3$
So, $a \div (-1)=-a$ is true.
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