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If the sum of the coefficient in the expansion of ${\left(1-3x+10{x}^{2}\right)}^{n}$ is *a* and if the sum of the coefficients in the expansion of (1 + *x* ^{2})* *^{n} is *b*, then :

(1) *a* = 3*b* * * (2) *a *= *b* ^{3} (c) *b = * *a* ^{3} (4) None of these

^{n}

(Refer Q 2)

https://www.meritnation.com/ask-answer/question/q-write-the-sum-of-the-coffeicients-in-the-expansion-of-1-3x/binomial-theorem/2851297

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