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Sequences and Series question

2024 · 6 Apr · Shift 2 · Q58
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Sequences and Series question

2024 · 6 Apr · Shift 2 · Q58

JEE MainMathematicsSequences and SeriesNumerical+4 / −1
If S(x)=(1+x)+2(1+x)2+3(1+x)3+⋯+60(1+x)60,xeq0\mathrm{S}(x)=(1+x)+2(1+x)^2+3(1+x)^3+\cdots+60(1+x)^{60}, x eq 0S(x)=(1+x)+2(1+x)2+3(1+x)3+⋯+60(1+x)60,xeq0, and (60)2 S(60)=a(b)b+b(60)^2 \mathrm{~S}(60)=\mathrm{a}(\mathrm{b})^{\mathrm{b}}+\mathrm{b}(60)2 S(60)=a(b)b+b, where a,b∈Na, b \in Na,b∈N, then (a+b)(a+b)(a+b) equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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