find the valu of.(
a); (2-1×4-1)÷2-2
(b). (1/2)-2 +(1/3)-2+(1/4)-2
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a); (2-1×4-1)÷2-2
= (2-4-1)÷2-2
= -3÷2-2
= -1.5-2
= -3.5
b). (1/2)-2 +(1/3)-2+(1/4)-2
= (1/2) - 2 + (1/3) - 2 + (1/4) -2
= 1/2 - 2 + 1/3 - 2 + 1/4 -2
LCM of denominator 2,3,4=12
= 6-24+4-24+3-24/24
= -59/12
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