HELP ME WITH THESE THREE QUESTIONS PLEASE. I WILL MARK BRAINLIEST.
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(i) let the no. required be x
(-8)^-1x=(10)^-1
x=-8/10
(ii)7/20,11/40,9/16,19/16,34/16
(iii)x+1/x=20
on squaring both sides
x2+1/x2+2=400
x2+1/x2=398
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HOPE IT HELPS.
MARK IT BRAINLIST.
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