College Trigonometry, 2011a

818 Foundations of Trigonometry
25. f(x) = √ 2sin(x)+ √ (
2 cos(x)+1=2sin x + π )
(
+1=2cos x + 7π 4
4
)
26. f(x) =3 √ (
3sin(3x) − 3cos(3x) =6sin 3x + 11π
6
27. f(x) =− sin(x)+cos(x) − 2= √ (
2sin x + 3π 4
28. f(x) =− 1 √
3
(2x
2 sin(2x) − 2 cos(2x) =sin + 4π )
3
29. f(x) =2 √ (
3 cos(x) − 2sin(x) =4sin x + 2π )
3
(
=6cos 3x + 4π 3
)
)
+1
)
− 2= √ (
2cos x + π )
− 2
4
(
=cos 2x + 5π 6
(
=4cos x + π )
6
30. f(x) = 3 2 cos(2x) − 3√ 3
(2x
2 sin(2x)+6=3sin + 5π 6
31. f(x) =− 1 √
3
(5x
2 cos(5x) − 2 sin(5x) =sin + 7π )
=cos
6
32. f(x) =−6 √ (
3cos(3x) − 6sin(3x) − 3 = 12 sin 3x + 4π 3
)
33. f(x) = 5√ 2
2 sin(x) − 5√ 2
(x
2 cos(x) =5sin + 7π 4
( x
6 + 5π )
3
( x
)
34. f(x) =3sin − 3 √ ( x
)
3cos =6sin
6 6
)
)
(
+6=3cos 2x + π )
+6
3
(
5x + 2π 3
)
)
(
− 3 = 12 cos 3x + 5π 6
(
=5cos x + 5π 4
( x
=6cos
6 + 7π 6
)
)
)
− 3