Question 176506
{{{(1+csc(a))/sec(a)=cos(a)+cot(a)}}}
dealing with the left side of the identity
substitute {{{sec(a)=1/cos(a)}}}
{{{(1+csc(a))/(1/cos(a))=(cos(a)+csc(a)cos(a))/1}}}
{{{csc(a)=1/sin(a)}}} so:
{{{csc(a)cos(a)=cos(a)/sin(a)=1/tan(a)=cot(a)}}}


Does this help???------------------ptaylor