ツ→Cheeta★

Today when I've tried to play online on black ops 2 every 10 seconds or so I get 'connection interrupted' message up on my screen. I've never had this problem before and it didn't sign me out or anything just kept on freezing saying 'connection interrupted'. Can someone please tell how to fix this problem?

Personally I found most of it quite easy

Every night for the past year I've been using nasal spray to unblock my nose so I can sleep. However my nose has been blocked much longer than that probs about 10 years. When I was younger I was allergic to dairy products, however I eat them now.

I found dy/dx = (2x – y)/(x + 1)

To find stationary points dy/dx = 0

So (2x – y)/(x + 1) = 0

Then I think you put 2x – y = 0

So 2x = y

Where do I go from here?

I need to find the Cartesian equivalent of the pair of parametric equations: x = 4cos(theta) – 2, y = 4sin(theta) + 5.

Also how would you draw a graph of this?

This is how I started

The original equations are x = t + sin(t) and y = t - cos(t)

dx/dt = 1 + Cos(t) and dy/dt =1 + sin(t)

dy/dx = (1 + sin(t))/(1 + cos(t))

now because t=π I substitute that in

so dy/dx = (1 + sin(π))/(1 + cos(π)) and it gives me 1/0 or maths error on calculator

To get the x and y values I put t=π into the two original equations

x=π + sin(π) so x = π and y=π - cos(π) so y = π + 1

however I cant figure out how to find the equation for the tangent when the gradient is 1/0, what do I do from here.

Thanks In Advance

Find dy/dx for y=(x+3)^2