Question

find the value of
$(1 \div 2) ^{ - 2} + (1 \div 3) ^{ - +2} + (1 \div 4) ^{ - 2}$
​

Answer 1

Step-by-step explanation:

$\frac{{1}^{ - 2} }{2} + \frac{ {1}^{ - 2} }{3} + \frac{ {1}^{ - 2} }{4}$