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Math 11 Chapter 10
Trigonometric Identities of Sum and Differe
Test - 6
1.
Cos (360
o
-
q
) = Cos
q
.
a) True
b) False
2.
Sin(3
p
/ 2 -
q
) is
a) -Sin
q
b) Sec
q
c) Cos
q
d) allied angle
3.
Cos (x + 45
o
) = 1 /
Ö
2 (Cos x + sin x)
a) False
b) True
4.
a) b
b) d
c) c
d) a
5.
Sin (180
0
– θ) = ……………
a) sin θ
b) -sin θ
c) - cos θ
d) cos θ
6.
If
q
is added or subtracted from odd multiples of right angle, the trigonometric ratios change into
a) allied angle.
b) acute angle
c) Co-ratios
d) None of the above.
7.
tan ( x/2)
a) +-
Ö
1-Cos
q
/ 1+Cos
q
b) -
Ö
1-Cos
q
/ 1+Cos
q
c) +
Ö
1-Cos
q
/ 1+Cos
q
8.
Sin (α-β) = …………
a) Sin α cos β + cos α sin β
b) Cos α cos β – sin α sin β
c) cos α cos β + sin α sin β
d) Sin α cos β – cos α sin β
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