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Find the following (i) [bari - barj ba...

Find the following
(i) `[bari - barj barj-bark bark-bari]`
(ii) `(bari-2barj+3bark)xx(2bari+ barj-bark).(barj+bark)`
(ii) `(2bari-3barj+bark).(bari -bar j+2bark)xx(2bari+ barj+bark)`

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