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Best_MathematicianBest ResponseYou've already chosen the best response.0
@electrokid can u help me with last two
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
how were you able to solve the first ones? You have to picture it and draw it first. Just a little bit of imagination gives the answer right away.
 11 months ago

FibonacciChick666Best ResponseYou've already chosen the best response.0
so you got the first three right? now you want a function that shows \[2[ \mathsf { {r}}(t)]\] So what was our original r(t)
 11 months ago

FibonacciChick666Best ResponseYou've already chosen the best response.0
btw this isn't dif eq
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
r(t) = (tsint)i + (1cost)j so if it is 2[r(t)] = (2t2sint)i + (22cost)j is it correct?
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
@electrokid is this what you talking about? dw:1367589459350:dw i got this part but what abt rest part @FibonacciChick666 r(t) = (tsint)i + (1cost)j so if it is 2[r(t)] = (2t2sint)i + (22cost)j is it correct?
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
dw:1367594323679:dw this is the diagram I was talking about
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
how does this diagram relates with vectors
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
dw:1367594594073:dw r(t) is the position vector of that small balck strip
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
oh gotcha...so circumference is the vector function that models the behavior
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
r(t) is the vector function linear distance travelled is easier to analyse by considering curcumference distances
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
r(t) is the position of that small strip on the bigger loop with radius R "r" = radius of smaller loop (confusing symbol, so use another one maybe "a" find a relation between R and "a"
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
R = 2r....?
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
then what is the relation between "r(t)" and R?
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
r(t) = 4piR...?
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
wait r(t) = 2R...correct?
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
wow...how did u do that
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
never mind how. but do you see how the question works?
 11 months ago

electrokidBest ResponseYou've already chosen the best response.1
I'll let @FibonacciChick666 continue from here
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.0
ya circumference is equal to 2pi. It takes 6seconds approx for that circle to complete one revolution
 11 months ago
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