Further MathematicsThe binomial theoremWAEC
Find the term independent of x in the expansion of (x + 1/x)⁴.
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Answer: A. 6
The general term ⁴Cᵣx⁴⁻²ʳ is constant when r = 2: ⁴C₂ = 6.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.