Input a range of numbers into an expression

tan(x)=sin(x)/cos(x) for x=-π/2, -π/4, 0, π/4, π/2.

I inputted a range for x;

>> x=[-pi/2 -pi/4 0 pi/4 pi/2]

x =

     -1.5708   -0.7854         0    0.7854    1.5708

I have the numbers in the workspace but I am trying to prove that when x is put into exquation it outputs the proof that tan(x) is equal to the sin(x)/cos(x).

Thanks

Answer 1

[Walter Roberson]

Hint: sin(x)./cos(x)