If x2+3x4(x+3)=Ax+3+Bx+Cx2+Dx3+Ex4, then C=
You are given cosx=1−x22!+x44!−x66!......; sinx=x−x33!+x55!−x77!......; tanx=x+x33+2x515...... Then the value of limx→0xcosx+sinxx2+tanx is