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Trigonometric Multiple Angles~ Multiple choice
Given are some identities of trigonometric multiple Angles. Guess its formula
Quiz by
SWATkun
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Last updated: November 27, 2019
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First submitted
November 27, 2019
Times taken
17
Average score
33.3%
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1.
Sin
(2θ)
2 Sin
θ
Cos
θ
✓
2 Sin
θ
2 Cos
θ
✓
Sin
θ
2 Cos
θ
✓
Sin 2
θ
Cos 2
θ
✓
2.
Cos
(2θ)
Sin
2
θ
- Cos
2
θ
✓
Cos
2
θ
- Sin
2
θ
✓
Sin 2
θ
- Cos 2
θ
✓
Cos 2
θ
- Sin 2
θ
✓
3.
Tan
2
θ
(1 + Cos
2θ
)/(1 - Cos
2θ
)
✓
(Cos
2
θ
+ 1)/(Cos
2
θ
- 1)
✓
(1 - Cos
2θ
)/(1 + Cos
2θ
)
✓
(Cos
2
θ
- 1)/(Cos
2
θ
+ 1)
✓
4.
Sin
(3θ)
4 Sin
θ
- 3 Sin
3
θ
✓
3 Sin
3
θ
- 4 Sin
θ
✓
3 Sin
θ
- 4 Sin
4
θ
✓
3 Sin
θ
- 4 Sin
3
θ
✓
5.
Cos
(3θ)
4 Cos
3
θ
- 3 Cos
θ
✓
3 Cos
4
θ
- 4 Cos
θ
✓
4 Cos
4
θ
- 3 Cos
θ
✓
3 Cos
3
θ
- 4 Cos
θ
✓
6.
Tan
(3θ)
(2 tan
θ
- tan
3
θ
)/(1 - 2 tan
3
θ)
✓
(3 tan
θ
- tan
3
θ
)/(3 - 1 tan
2
θ)
✓
(3 tan
θ
- tan
3
θ
)/(1 - 3 tan
2
θ)
✓
(3 tan
θ
- tan
2
θ
)/(1 - 3 tan
3
θ)
✓
7.
2Cos
2
θ
1 + Cos
(2θ)
✓
Cos
(2θ)
- 1
✓
Cos
(2θ)
+ 1
✓
1 - Cos
(2θ)
✓
8.
2Sin
2
θ
Cos
(2θ)
+ 1
✓
1 - Cos
(2θ)
✓
1 + Cos
(2θ)
✓
Cos
(2θ)
- 1
✓
9.
Tan
(2θ)
2 tan
θ
/(2 - tan
2
θ)
✓
(2 - tan
2
θ)/2 tan
θ
✓
2 tan
θ
/(1 - tan
2
θ)
✓
2 tan
θ
/(1 + tan
2
θ)
✓
Finish Quiz
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