MCQOPTIONS
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| 1. |
If \[y=1-x+\frac{{{x}^{2}}}{2!}-\frac{{{x}^{3}}}{3!}+\frac{{{x}^{4}}}{4!}-\]....., then \[\frac{{{d}^{2}}y}{d{{x}^{2}}}=\] [Karnataka CET 2003] |
| A. | \[x\] |
| B. | \[-x\] |
| C. | \[-y\] |
| D. | \[y\] |
| Answer» E. | |