Question

pls, answer this question fast.please

Answer 1

Step-by-step explanation:

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Explanation:

$= >( {3}^{ - 1} \times {4}^{ - 1} ) \times {5}^{ - 1} \div 2 \times {( {5}^{ - 1}) }^{0}$

$= > (\frac{1}{3} \times \frac{1}{4} ) \times \frac{1}{5} \div 2 \times { (\frac{1}{5}) }^{0}$

$= > \frac{1}{12} \times \frac{1}{5} \times \frac{1}{2} \times 1$

$= > \frac{ 1}{60} \times \frac{1}{2} = {\red{\frac{1}{120}}}$

Concept and basis:-

• The value having power in inverse can also be written as 1/some value.

example =>${5}^{ - 1} = \frac{1}{5}$

• If a constant or variable having power 0 is then it written as 1. or power of 0 is 1
• If a Value having different power but if base is same then power be added in multiplication and gets subtracted in division.

example:2×${2}^2={2}^3$(power is added)

$\frac{2}{2}^2={2}^{1-2}={2}^{-1}$(power is substract base is same)