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Mathematics

Factorisation of (lm + l) + m + 1 is

  1. (lm + 1)(m + l)

  2. (lm + m)(l + 1)

  3. l(m + 1)

  4. (l + 1)(m + 1)

Factorisation

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Answer

(lm + l) + m + 1

Rearranging the above terms we get,

lm + m + l + 1 = m(l + 1) + 1(l + 1)

= (l + 1)(m + 1).

Hence, Option 4 is the correct option.

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