Question

17. Value of given
expression is:
(1/2)-²+(1/3)²+(1/4)²
​

Answer 1

Given:

expression is (1/2)-²+(1/3)²+(1/4)²

To Find:

value of the expression

solution:

here by using laws of exponents we simplify it.!

$: ⟹\sf \: (\frac{1}{2}) ^{ - 2} + {( \frac{1}{3}) }^{2} + (\frac{1}{4})^{2} \\ \\ : ⟹ \sf {2}^{2} + {3}^{ - 2} + {4}^{ - 2} \: \: \: \: \: \: \: \: \: \: \: \\ \\ : ⟹ \sf4 - 9 - 16\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ : ⟹ \sf - 21\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

hope this helps.!!

Answer 2

Answer:

the answer given by INEXPLICABLE SOUL is correct.

Step-by-step explanation:

-21