Recent content by Venito

I use to know but far to rusty. And don't have my old books to look at. So no don't remember the period of the function. mac

Homework Statement Consider the function y=sin2x +cos3x A.] Find a value for y if x= pie radians. B.] Find y if x= 0.3 radians. C.] What is the period of this function? Show how you obtained your answer? The Attempt at a Solution What I would like to know is how would I go...

Thank you all very much. That makes much clearer sence. mac

Homework Statement For the line y=2x+4 A, find the posiotion vector of the point A, on the line, Which is 6 units from the origin in the 1st quadrant. Express your answer in: i.] Matrix form. [Never done matrix] ii.] the form OA [Line with arrow pointing right above it.] = xi +yj...

I have not done any maths for a very long time now. And have forgotten a lot of what I learned. Right now I am having to get back into it again. And can't get my head around this problem. Homework Statement Two people 1.8m tall walk directly away from each other until they can no longer...

I am use to radians. Just not these. So use degrees. Okay I will give it a try. Thanks.

Homework Statement Consider the function y=sin2x +cos3x. a.] Find a Value for the y if x= pye [Or who how ever it is spelled. 3.141592654] b.] Find y if x=0.3 Radians. c.] What is a period of this function? Show how you obtain this answer. The Attempt at a Solution No attempt...

Right that makes sense. With the changes made I should come out. Thanks.

Homework Statement A. Expand the function, f[x]= [1+x] to the power three, [What I mean is is the [1+x] is cubed. in increasing powers of x, and sate whether or not the function is a poly-nominal, giving reasons. B. Plot graph f[x] C. On the same axes plot the functions, g[x] which...

What a idiot. It is √2/2. Which is now correct.

So I would then take the problem. \frac{1}{\sqrt{2}} Then multiply top and bottom by √2/√2. Which would then give me a √2. Is that right?

Right so that means I am correct. So what is Pinu7 meaning then about the roots in the denominator? Should they be taken out or not, from the box of nine I have, or what I mean the results from sin 30 45 60 cos 30 45 60 tan 30 45 60.

Right so I played with it. And have come up with this. 1/2, 0.707106781, √3/2. √3/2, 0.707106781, 1/2. 0.577350269, 1, √3. Which is the memorized functions or answers to sin cos tan 30 45 60. But with no square roots on the denominator. So in other words they just want all 9 forms of...

Right. I will let you know how I go. Thanks.

Right so to answer this. Okay now I have the triangles like that. So do I now plug in the other values I have or do they get some sort of multiplication? mac