Cosx x 1 2 0 July 8, 2019 16 32 64 128 Cos x 1 2 0 Cos x =- 1 2 0 2pi 2cos 2 x cosx 1 0 Sin 2 x cosx 1 0 2sin 2 x cosx 1 0 8sin 2 x cosx 1 0 Lim x 0+ cosx 1 x 2 Lim x → 0 cosx 1 x 2 1 cosx x 2 as x approaches 0 Limx 0 1 cosx x 2 Sin2x cos pi 2 x )/ cosx 1 0 Cosx cos x 2 )+ 1 0 1 cosx x 2 limit 0
