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Mathematics: Post your doubts here!

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Hi can anyone help me in ths question. I dnt know what to do in the second part.

Question is : the parametric equation of a curve are x=2cost , y=5+3cos2t , where 0<t<pie .
Express dy by dx in terms of t, and hence show that the gradient at any point of the curve is less than 6.


now use values of t like o pi/2 and pi to get different ans of dy/dx. u will get values less then 6 :) hope this image is clear
 

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Assalamoalaikum Wr Wb!

Post your doubts here. Make sure you give the link to the question paper when posting your doubts.


May Allah give us all success in this world as well as the HereAfter...Aameen!! :)

And oh yeah, let me put up some links for A level Maths Notes here.

Check this out! - Nice website, with video tutorials!

My P1 Notes! - Only few chapters available at the moment!

Maths Notes by destined007

Some Notes for P1 and P3 - shared by hamidali391

A LEVEL MATHS TOPIC WISE NOTES

MATHS A LEVEL LECTURES

compiled pastpapers p3 and p4 - by haseebriaz

Permutations and Combinations (my explanation)- P6

Permutations and Combinations - P6

Vectors - P3

Complex No. max/min IzI and arg(z) - P3

Sketcing Argand Diagrams - P3 (click to download..shared by ffaadyy)

Range of a function. - P1

Jazak Allah Khair!
mathy..
Thanks for the notes.... really helpful :)
http://www.xtremepapers.com/papers/...AS Level/Mathematics (9709)/9709_s05_qp_3.pdf I need help with no. 8 part ii)
and also, on number 2 the mark scheme says the height is 0.6.... how can that be when the range for x is -0.6 to 0.6??
 
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I am reposting this.. is anyone willing to help me?? :(

8KlqC.jpg


The diagram shows the graph of y = x^n, where n is an integer. Given that the curve passes between the points (2, 200) and (2, 2000), determine the value of n.

Please explain the solution step-by-step.. thanks!

Bro there are 2 mistakes in ur question.
1st= Ur questions says there are two values of y when x=2, but ur graph doesnt support it
2nd= I dont think u will hv a integer value for n...
 
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can any good one draw the last part only with a little working to meake me understand please thanks :)
 

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