By recognizing each series below as a Taylor series evaluated at a particular value of x, find the sum of each convergent series. A. 4−433!+455!−477!+⋯+(−1)????42????+1(2????+1)!+⋯= B. 1−222!+244!−266!+⋯+(−1)????22????(2????)!+⋯=