Evaluate ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{e}^{x}cosxdx$ Select one: a$.e^{x}cosx+e^{x}sinx+C$ b$.\frac{e^{x}cosx-e^{x}sinx}{2}+C$ c$.e^{x}cosx-e^{x}sinx+C$ d$.\frac{e^{x}cosx+e^{x}sinx}{2}+C$ Evaluate ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{e}^{x}cosxdx$ Select one: a$.e^{x}cosx+e^{x}sinx+C$ b$.\frac{e^{x}cosx-e^{x}sinx}{2}+C$ c$.e^{x}cosx-e^{x}sinx+C$ d$.\frac{e^{x}cosx+e^{x}sinx}{2}+C$ Evaluate ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{e}^{x}cosxdx$ Select one: a$.e^{x}cosx+e^{x}sinx+C$ b$.\frac{e^{x}cosx-e^{x}sinx}{2}+C$ c$.$