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Question
Find the value of the following:
\[\left( \frac{1}{2} \right)^{- 2} + \left( \frac{1}{3} \right)^{- 2} + \left( \frac{1}{4} \right)^{- 2}\]
Sum
Solution
\[\left( \frac{1}{2} \right)^{- 2} +\left( \frac{1}{3} \right)\]-2+14-2=11/22+11/32+11/42 → (a−n = 1/(an))
\[\frac{1}{1/4} + \frac{1}{1/9} + \frac{1}{1/16}\] →((a/b)n =(an/bn))
= 4+9+16
=29
= 4+9+16
=29
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