In the expansion of (1 + x)n (1 + y)n (1 + z)n, the sum of the co-efficients of the terms of degree 'r' is
  • a)
  • b)
  • c)
  • d)
     
Correct answer is option 'C'. Can you explain this answer?

JEE Question

By Sujata Patil · 3 weeks ago ·JEE
3 Answers
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