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OCR A Level Maths

Solving Trig Equations

OCR (A) H240/03 Jun 2024 A2 Exam Q. 4 b
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OCR (A) H240/02 Jun 2024 A2 Exam Q. 6 bc
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OCR (A) H230/01 Jun 2023 AS Exam Q. 1 b
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OCR (A) H240/03 Jun 2023 A2 Exam Q. 2 b
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OCR (A) H230/01 Jun 2022 AS Exam Q. 4
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OCR (A) H240/01 Jun 2022 A2 Exam Q. 4
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OCR (A) H240/03 Jun 2022 A2 Exam Q. 7 b
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OCR (A) H230/02 Nov 2021 AS Exam Q. 5 b
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OCR (A) H230/01 Nov 2020 AS Exam Q. 3 a
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OCR (A) H240/02 Nov 2020 A2 Exam Q. 4
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OCR (A) H230/01 Jun 2019 AS Exam Q. 3 b
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OCR (A) H240/03 Jun 2019 A2 Exam Q. 5 b
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OCR (A) H230/02 Jun 2019 AS Exam Q. 6
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OCR (A) H230/01 Jun 2018 AS Exam Q. 3
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OCR (A) H230/02 Jun 2018 AS Exam Q. 7
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OCR (A) H230/02 Jun 2017 AS Sample Exam Q. 2
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OCR (A) H230/01 Jun 2017 AS Sample Exam Q. 6 b
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OCR (A) H240/01 Jun 2017 A2 Sample Exam Q. 8
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Check solutions to equations numerically
Explore sin, cos and tan in the unit circle
Find Derived Identity 1
Two other identities can be derived from the identity ${\sin ^2}(x) + {\cos ^2}(x) \equiv 1$. This display allows you to view one of them.

Adjust the sliders so the green and red curves coincide. You will see the identity.
Find Derived Identity 2
Two other identities can be derived from the identity ${\sin ^2}(x) + {\cos ^2}(x) \equiv 1$. This display allows you to view one of them.

Adjust the sliders so the green and red curves coincide. You will see the identity.
sin(x + a) + sin(x - a)
The display shows \(\color{blue}{y = \sin x}\) in blue and \(\color{red}{y = \sin \left( {x + a} \right) + \sin \left( {x - a} \right)}\)
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