Question

i cant seem to solve this

Answer 1

Answer:

(3-¹ + 4-¹ )-²

=>( 1/3 + 1/4 )-²

=> (4 + 3/12 )-²

=> (7/12)-²

=> (12/7)²

=> 144/49 Answer

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Hope it helps you !!!

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$({ {3}^{ - 1} + {4}^{ - 1} )}^{ - 2}$

AS THE POWERS ARE IN NEGATIVE THEN WE DO RECIPROCAL.

$( { \frac{1}{3} + \frac{1}{4}) }^{ - 2} \\ \\ \\ \\ \\ \\ { (\frac{4 + 3}{3 \times 4} )}^{ - 2} \\ \\ \\ \\ \\ { \frac{7}{12} }^{ - 2} \\ \\ \\ \\ \\ \\ { (\frac{12}{7} })^{2} \\ \\ \\ \frac{144}{49}$