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प्रश्न
Simplify: `7"a" ["8a" - (11"a" - (12"a" - bar"6a - 5a"))]`
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उत्तर
`7"a" ["8a" - (11"a" - (12"a" - bar"6a - 5a"))]`
= 7a - [8a - {11a - (12a - 6a + 5a)}]
= 7a - [8a - {11a - (17a - 6a)}]
= 7a - [8a - {11a - (11a)}]
= 7a - [8a - {11a - 11a}]
= 7a – 8a
= - a
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