How can I solve five non linear equation roots with five equations with newton raphson method?

cos(x1)+cos(x2)+cos(x3)+cos(x4)+cos(x5)=0.9;; cos(5(x1))+cos(5(x2))+cos(5(x3))+cos(5(x4))+cos(5(x5))=0;; cos(7(x1)))+cos(7(x2))+cos(7(x3))+cos(7(x4))+cos(7(x5))=0;;...

17 August 2015 2,326 4 View