In the expansion of (1+x)^ 7 (1+y)^ 7 (1+z)^ 7 , the sum of the coefficients of the terms…
Mathematics · JEE Main · NTA Exams — Binomial Theorem And Its Simple Applications
In the expansion of \((1+x)^{7}(1+y)^{7}(1+z)^{7}\), the sum of the coefficients of the terms of degree \(m\) is :
- \(\left({ }^{n} c_{m}\right)^{3}\)
- \({ }^{n} c_{3 m}\)
- \({ }^{3} c_{m}\)
- \(3^{n} C_{m}\)
Answer
(A) ( ^ n c_ m )^ 3
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