anonymous
  • anonymous
Find dy/dx in terms of t for the following curve: (c) x=2cost, y=3sint
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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dumbcow
  • dumbcow
\[\frac{dy}{dx} = \frac{dy}{dt}*\frac{dt}{dx}\]
anonymous
  • anonymous
True, but I'm not good with cos and sin How do I work with it? Would x' = -2sint y'= 3cost ??
dumbcow
  • dumbcow
correct

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anonymous
  • anonymous
so, it would be\[ 3cost \over -2sint? \]
dumbcow
  • dumbcow
yep or -3/2 cot(t)
anonymous
  • anonymous
Is cos/sin always cot?
dumbcow
  • dumbcow
yes and sin/cos is always tan
anonymous
  • anonymous
Yes, I knew that one :) Do you think you could help me with the equation I just put up?
dumbcow
  • dumbcow
yeah i'll take a look

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