... ) cos( x + ) + sin x 6 π π c y = 2sin(2 x + ) + cos x cos( x + ) d y = sin x + cos x + sin x 3 Bai 11 Tìm GTLN GTNN hàm số : 4sin x sin x + cos x + sin x y= a y = b y = c π + sin(2 x + ) sin...
... ) cos( x + ) + sin x 6 π π c y = 2sin(2 x + ) + cos x cos( x + ) d y = sin x + cos x + sin x 3 Bai 11 Tìm GTLN GTNN hàm số : 4sin x sin x + cos x + sin x y= a y = b y = c π + sin(2 x + ) sin...