Question

plz tell second question .​

Answer 1

Answer:

$\frac{2}{5}$

Step-by-step explanation:

Reciprocal the number, will change the sign of the power, therefore,

⇒ ( 2⁻¹ × 5⁻¹ ) ÷ ( 4 )⁻¹

⇒ ( $\frac{1}{2}$ × $\frac{1}{5}$ )¹ ÷ ( $\frac{1}{4}$ )¹

⇒ $\frac{1}{10}$ ÷ $\frac{1}{4}$

⇒ $\frac{1}{10}$ × 4

⇒ $\frac{2}{5}$