Single Answer MCQ
Q-00051994
If the term in the expansion of (a + b)^n is represented as nCr * a^(n-r) * b^r, which increment does r represent?
1
The power of a
2
The power of b
3
The term number
4
The coefficient number
Answer and Solution
Answer
B. The power of b
Solution:
In the term nCr * a^(n-r) * b^r, r represents the power of b in that term as it increases while the power of a decreases.
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