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Differentiating
Hiya can someone please help me differentiate these so that i can then find dy/dx in terms of the parameter t. I am so stuck and would really appreciate the help!
x= 2t-sin2t y=1-cost
x= 3t-2sint y-t(squared) + tcost
x= 2t-sin2t y=1-cost
x= 3t-2sint y-t(squared) + tcost
ok but i really dont get it do i have to separate them for this one
x=2t-sin2t
will i need to use the double angle formula then differentiate that?
x=2t-sin2t
will i need to use the double angle formula then differentiate that?
well im not comfortable with it! im so confused think ill just give up thanks anyway.
yeh thats what i got when i was just working out 
thanks. So would x = 2t-sin2t
dx/dt = 2-2cos2t
thanks. So would x = 2t-sin2tdx/dt = 2-2cos2t
sweet_candy_cane
yeh thats what i got when i was just working out thanks. So would x = 2t-sin2t
dx/dt = 2-2cos2t
thanks. So would x = 2t-sin2tdx/dt = 2-2cos2t
Yep.
ghostwalker
Yep.
thankyou!
would y = 1-cost
dy/dt = sint
sweet_candy_cane
thankyou!
would y = 1-cost
dy/dt = sint
would y = 1-cost
dy/dt = sint
Yep to that one too.
ghostwalker
Yep to that one too.
sorry! last 2 questions!
would x = 3t-2sint
dx/dt = 3-2cost
and y= t(squared) + tcost
dy/dt = 2t - t(sqaured)sint
???
sweet_candy_cane
sorry! last 2 questions!
would x = 3t-2sint
dx/dt = 3-2cost
and y= t(squared) + tcost
dy/dt = 2t - t(sqaured)sint
???
would x = 3t-2sint
dx/dt = 3-2cost
and y= t(squared) + tcost
dy/dt = 2t - t(sqaured)sint
???
First one is correct.
For the second one, second part, you need use the product rule to differentiate "t Cos t".
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