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Question
junior college 1 | H2 Maths
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Please help with part A and C. Thanks in advance
Date Posted: 6 years ago
Views: 774
dy/dt = (e^3t) (cos 3t) (3) + (sin 3t) (e^3t) (3) = 3(e^3t)(cos 3t + sin 3t)
dx/dt = (e^3t) (- sin 3t) (3) + (cos 3t) (e^3t) (3) = 3(e^3t)(cos 3t - sin 3t)
dy/dx
= (cos 3t + sin 3t) / (cos 3t - sin 3t)
= {sqrt (2) sin (3t + pi/4)} / {sqrt (2) cos (3t + pi/4)} <-- using R formula
= tan (3t + pi/4)
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1(c) probably also requires R formula.
dx/dt = (e^3t) (- sin 3t) (3) + (cos 3t) (e^3t) (3) = 3(e^3t)(cos 3t - sin 3t)
dy/dx
= (cos 3t + sin 3t) / (cos 3t - sin 3t)
= {sqrt (2) sin (3t + pi/4)} / {sqrt (2) cos (3t + pi/4)} <-- using R formula
= tan (3t + pi/4)
---
1(c) probably also requires R formula.
See 1 Answer
done
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clear
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Substitute pi/2 to complete the question:)
Date Posted:
6 years ago
Thanks
Thanks
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