Quick questions on Vector and cartesian equations of curves (WACE Year 12 Mathematics Specialist Unit 3)

Q: What is wrong identity for elimination?

For trigonometric parametrisations, use cos^2 + sin^2 = 1; substituting clumsily often fails.

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What is wrong identity for elimination?

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For trigonometric parametrisations, use

\cos^2 + \sin^2 = 1

; substituting clumsily often fails.

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