MCQOPTIONS
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| 1. |
If the sum of the coefficients in the expansion of \[{{(1-3x+10{{x}^{2}})}^{n}}\] is a and if the sum of the coefficients in the expansion of \[{{(1+{{x}^{2}})}^{n}}\] is b, then |
| A. | \[a=3b\] |
| B. | \[a={{b}^{3}}\] |
| C. | \[b={{a}^{3}}\] |
| D. | None of these |
| Answer» C. \[b={{a}^{3}}\] | |