The sum of last ten coefficients in the expansion of 1 x 19 when expanded in ascending powers of x i...........

The sum of last ten coefficients in the expansion of (1+x)¹⁹ when expanded in ascending powers of x is

2¹⁹

2¹⁸

2¹⁸-¹⁹C₁

None of these

2¹⁸

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