Recent content by Sean1

Hi everyone, Can you please assist with the following problem? The complex numbers z and w are such that for the real variable x, (x-z)(x-w)=ax2+bx+c for real a,b and c. By letting z=p+qi and w=r+si, prove that z and w must be conjugates of one another.So far, I have determined that a=1...

Thanks for getting me started. This is my working. Can you confirm my approach is correct?

I cannot seem to prove the following identity (1+sin(x))/(1-sin(x))=2tan^2(x)+1+2tan(x)sec(x) Can you assist?

Many thanks! :cool:

Hi everyone this is my first post. Please let me know if I am not following the proper etiquette. I am helping out a friend with a problem. My answer to part (b) does not match the solution my friend has been given. Four people are selected from a committee of 12 represent the committee at a...