Question

pls answer really quick useless answers will be reported​

Answer 1

Step-by-step explanation:

(1/2²+1/3²+1/4²)^-1

(1/4+1/9+1/16)^-1

(36+16+9/144)^-1

(61/144)^-1

144/61

Answer 2

Answer:

(2^-2+3^-2+4^-2)^-1

=(1/4+1/9+1/16)^-1

=(36+ 16+9 )^-1

144

=(61/144)^-1

=144/61

= 2.36 approx.

Hope it helps you can convert the answer to mixed fraction too.