Question

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

Step-by-step explanation:

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

= (6+2+3/12)^-1

= 11/12^-1 =12/11 =1 1/11