Use power series operations to find the taylor series of cos2(x)cos2⁡(x) at the point a=0a=0. your answers should not include the variable xx. finally, determine the general term anan in cos2(x)=∑n=0[infinity]anx2ncos2⁡(x) =∑n=0[infinity]anx2n. hint: cos2(x)=(1+cos2x)/2.cos2⁡(x)=(1+cos ⁡2x)/2.