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JEE MAIN - Mathematics Hindi (2024 - 6th April Evening Shift - No. 29)
यदि $$S(x)=(1+x)+2(1+x)^2+3(1+x)^3+\cdots+60(1+x)^{60}, x \neq 0$$, तथा $$(60)^2 S(60)=a(b)^b+b$$, जहाँ $$a, b \in N$$, तो $$(a+b)$$ बराबर है ________
Answer
3660
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