KI M TRA T P TRUNG Mơn: TỐN – Kh i 11 – Th i gian: 45 phút Gi i ph ng trình sau: 1) ( 3sin x − )( 5cos 2x + ) = (1.5đ) 2) 3) 4) 5) 6) π⎞ 3π ⎞ ⎛ ⎛ sin ⎜ x + ⎟ = cos ⎜ x + ⎟ (1đ) 4⎠ ⎠ ⎝ ⎝ sin x − cos x = − (1.5đ) 3sin x + 3sin x cos x + cos x = (2đ) − sin x + cos x = sin x + tan 2x (2đ) cos 2x sin 2x cos x = 2sin 4x ( sin 3x + sin 5x ) + cos x (2đ) KI M TRA T P TRUNG Mơn: TỐN – Kh i 11 –Th i gian: 45 phút Gi i ph ng trình sau: 1) ( 5cos x + 3)( − 4sin 3x ) = (1.5đ) 2) 3) 4) 5) 6) π⎞ π⎞ ⎛ ⎛ cos ⎜ x + ⎟ = sin ⎜ x − ⎟ (1đ) 4⎠ 4⎠ ⎝ ⎝ sin x − cos x = −1 (1.5đ) 4sin x + 3sin x cos x − cos x = (2đ) cos x + sin x − (2đ) tan 2x − sin x = cos 2x sin 3x ( cos 2x − cos 4x ) = 2sin 6x sin x + 2sin x (2đ) ThuVienDeThi.com