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Math 11 Chapter 10
Trigonometric Identities of Sum and Differe
Test - 2
1.
Cos
4
θ – Sin
4
θ =……………..
a) 1/sec2 θ
b) Sec2 θ
c) cos2 θ/Sin θ
d) co2 θ
2.
tan (
p
/2 +
q
) = tan (3
p
/2 +
q
) = _______________.
a) Cos
b) -Cot .
c) Sin
d) Cosec
3.
2sin θ sin Φ =…………..
a) Cos (θ - Φ) – cos (θ + Φ)
b) Cos2θ – Cos2Φ
c) Cos (Φ - θ) + Cos (Φ + θ)
d) Cos (θ + Φ) – cos (θ - Φ)
4.
P is a point on the terminal side of an angle
h
one unit away from origin; the co-ordinates of P are __________.
a) (tan , sin )
b) (Cos , tan )
c) (Cos , sin )
5.
If rCos
q
= 7 and r Sin
q
= 3 then r = _________
a) -
Ö
58
b) 49
c) 9
d) +
Ö
58
6.
Cot x - tan x
a) 2 cos 2 x.
b) 4 cos 2 x.
c) 2 cos 4 x.
7.
Tan (270
0
+ θ) = ………..
a) cot θ
b) -tan θ
c) -cot θ
d) tan θ
8.
Cos(x/2)=+-
Ö
1+Cosx / 2
a) True
b) False
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