Tolong plis….tolong

Posted on

Tolong plis....tolong

Tolong plis….tolong

Jawaban Terkonfirmasi

Lim (sin 3x – sin 7x)/(4x cos 2x)
= Lim 1/(cos 2x) . (sin 3x – sin 7x)/4x
= Lim 1/(cos 2x) . ((sin 3x)/4x – (sin 7x)/4x)
= 1/(cos 2.0) . (3/4 – 7/4)
= 1/(cos 0) . -4/4
= 1/1 . -1
= -1