Forgot password? New user? Sign up
Existing user? Log in
The value of ∑r=012(12r)cosrπ6\displaystyle\sum_{r=0}^{12} \binom{12}{r} \cos \frac {r\pi}{6}r=0∑12(r12)cos6rπ
is of the form−(x+y)z-(x+\sqrt {y})^{z}−(x+y)z, where x,yx,yx,y and zzz are integers, and zzz is as large as possible.
Find x+y+zx+y+zx+y+z.
Problem Loading...
Note Loading...
Set Loading...