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WorksheetsTrigonometry
Total questions: 25
Worksheet time: 13mins
Sin 90° =
1
0
1/2
90
Sin ( A + B ) =
Sin A Cos B + Cos A Sin B
Sin A Cos B - Cos A Sin B
Sin A + Sin B
Cos A + Cos B
Tan A =
1 / cot A
Sin A / Cos A
Opposite side / adjacent side
All the above
Cos ( 90°- A ) =
Sin A
Cos A
Sec A
Cosec A
Cosec2A - Cot2A =
2
1
0
4
1 + tan 2 A =
Cosec2A
Sec 2 A
Cot 2A
Tan 2 A
1 - Cos 2A =
Cos 2 A
Tan 2A
Sin 2 A
Sec 2 A
Sin 2 75° + Cos 2 75° =
75
2
1
0
Tan 45° + Cot 45° =
1
2
√2
2 √3
Cosec ( 90° - A ) =
Sec A
Cos A
Sin A
Cosec A
If Tan A = 1 then the value of A is
A = 90°
A = 60°
A = 30°
A = 45°
If √3 tan A = 1 then the value of A is
A = 45°
A = 30°
A = 60°
A = 0°
Cosec 45° + sec 45° =
√2
2√2
90°
2√3
If sin A= 3/5 and cos A = 4/5 then
Tan A =
7/5
12/25
3/4
1
The ratio of adjacent side and hypotenuse is
Sin A
Cos A
Tan A
Sec A
Tan 60° is a
Rational number
Natural number
Irrational number
All the above
If sin ( A + B ) = 1 then
A and B are
Complementary angles
Supplementary angles
Conjugate angles
All the above
2 tan 45° =
Sec 30°
Cosec 30°
Cos 30°
Sin 30°
Cot A =
Opp side/ adj side
Opp side/ hypotenuse
Adj side/ opp side
Adj side/ hypotenuse
Reciprocal of cos A is
Sin A
Sec A
Cosec A
Cos A
1 / cosec A
Sin A
Cos A
Tan A
Cot A
From the figure AC =
7
1
5
25
From the figure Tan C =
AB/BC
AB/AC
BC/AC
BC/AB
Cos A Cos B - sin A sin B =
Cos ( A + B )
Cos ( A -B )
Sin ( A + B )
Sin ( A - B )
Sin ( 60° + 30° ) =
0
1
90
45
