1.(2022春•昭通月考)设函数f(x)=aexsinx−x2f(x)=ae^{x}\sin x-x^{2}f(x)=aexsinx−x2,曲线y=f(x)y=f(x)y=f(x)在点(0(0(0,f(0))f(0))f(0))处切线的斜率为1,f′(x)f\prime (x)f′(x)为f(x)f(x)f(x)的导函数.(1)求aaa;(2)证明:f′(x)f\prime (x)f′(x)在[0[0[0,π]\pi ]π]上存在唯一的极大值点x0x_{0}x0.