Recent content by RaPiD

Okay thanks Integral. I will look up expansions on google and see where that takes me.

I would I go about doing a polynomial expansion?

Oh. So basically I still have to just plug in numbers into the calculator. There's no expression I could solve

Would solving sinx = tanx be a better approach for solving it?

Yeah. I understand the concept of the question by which tan and sin are equal. It just that's going to be a lot of guessing and checking to fulfill the requirements of it being a small angle to two decimal places which I just realized has to be radians. :).

hmm..is there a more mathematical way in solving this besides just plugging in. How wouldn't solving tanx - sinx = .05 wouldn't exactly the question. How did you even get .05?

Hi tiny-tim The question states to two decimal places.

Yeah that's correct it has to be between 0 and 2 pi. But I don't understand how these cases can help in determining an angle. Since the problem is asking for when sin = tan and not sin = cos

Okay Thanks. So I computed sin x = sin x / cos x and cross multiplied and got sinxcosx= sinx. I don't know if I can keep on solving or use an trig identity from here.

Homework Statement For small angles, the numerical value of sin theta is equivalent to tan theta. find the largest angle for which sine and tangent agree. Homework Equations I do not think a equation is need to answer this question. The Attempt at a Solution I honestly couldn't...

Yeah dx I got .00195 s , your last reply from my last question helped me a little more to understand it. Thanks again.

thanks for the reply, but I think I go it now. I think since its fundamental frequency its half of the wavelength. And I completely forgot what frequency actually is.

Homework Statement Fundamental frequency of a string fixed at both ends is 256 Hz. How long does it take for a wave to travel the length of string? Homework Equations V = f (lambda) Otherwise, not really sure. The Attempt at a Solution I didn't really know how to approach...

thanks dx that clears up a lot

Homework Statement On a cello, the string has (linear density) m/L = 1.56 x 10^-2 kg/m, and produces frequency of 65.4 Hz and has length of .800 m between the fixed ends. Find the tension. Homework Equations v= sqrt(F/(m/L)) v= f (lambda) The Attempt at a Solution I first...