Question

plz tell me the value of
${3}^{ - 1} \times {4}^{ - 1}$
​

Answer 1

Answer:

From the law of exponent

$a {}^{ - m} = \frac{1}{a {}^{m} }$

Using the same law

$3 {}^{ - 1} \times 4 {}^{ - 1} \\ = \frac{1}{3 {}^{1} } \times \frac{1}{4 {}^{1} } \\ = \frac{1}{3} \times \frac{1}{4} \\ = \frac{1}{12}$