This discussion is now closed.
Check out other Related discussions
- A-level Maths Question
- Parametric integration
- Edexcel A2 Mathematics: Core Mathematics C4 6666 01 - 22 June 2018 [Exam Discussion]
- Parabola coordinates (FP1) maths help
- Parametrics
- A-level maths help!
- Parametric integration
- "My Cambridge Application" Help
- modelling with parametric equations
- Implicit and parametric curves
- Anyone else feel like if they did their A levels now they would fail?
- Cartesian Equations-finding arc length
- The Directrix of a Parabola
- Maths parametric integration
- What do you need to and not need to memorise for Research Methods in psych?
- One cubic root is reciprocal of other question
- A Level Maths AQA 2023
- Hardest part of A level maths
- How to choose between Pearson and Spearman correlation?
- A Level Maths - Parametrics help!
C4 - Parametric equations, Help!
A curve, C, has parametric equations
x = sinθ - cosθ + 1
y = sin2θ
Show that the cartesian equation of the curve is y = - x^2 + 2x
Could someone show the working for this?
x = sinθ - cosθ + 1
y = sin2θ
Show that the cartesian equation of the curve is y = - x^2 + 2x
Could someone show the working for this?
x = sinθ - cosθ + 1
y = sin2θ = 2sinθcosθ
x-1 = sinθ - cosθ
(x-1)² = (sinθ - cosθ )²
x² - 2x + 1 = -2sinθcosθ + sin²θ + cos²θ
x² - 2x + 1 = -2sinθcosθ + 1
x² - 2x = -2sinθcosθ
-x² +2x = 2sinθcosθ
y = -x² + 2x
y = sin2θ = 2sinθcosθ
x-1 = sinθ - cosθ
(x-1)² = (sinθ - cosθ )²
x² - 2x + 1 = -2sinθcosθ + sin²θ + cos²θ
x² - 2x + 1 = -2sinθcosθ + 1
x² - 2x = -2sinθcosθ
-x² +2x = 2sinθcosθ
y = -x² + 2x
Related discussions
- A-level Maths Question
- Parametric integration
- Edexcel A2 Mathematics: Core Mathematics C4 6666 01 - 22 June 2018 [Exam Discussion]
- Parabola coordinates (FP1) maths help
- Parametrics
- A-level maths help!
- Parametric integration
- "My Cambridge Application" Help
- modelling with parametric equations
- Implicit and parametric curves
- Anyone else feel like if they did their A levels now they would fail?
- Cartesian Equations-finding arc length
- The Directrix of a Parabola
- Maths parametric integration
- What do you need to and not need to memorise for Research Methods in psych?
- One cubic root is reciprocal of other question
- A Level Maths AQA 2023
- Hardest part of A level maths
- How to choose between Pearson and Spearman correlation?
- A Level Maths - Parametrics help!
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
