Chemistry, 23.08.2019 05:10 unknowntay04

Why does -sin (pi/2+pi/2) = 0 ? can you explain why this is ?
and how do i other sin( and cos( calculations with two variables is there a trick?
1 * sin (pi/6
cos (pi/3*pi/6)
the above are just examples of different variations, i may have to calculate can you explain a way to calculate as on the calculator they give wrong answers

Answers: 2

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Why does -sin (pi/2+pi/2) = 0 ? can you explain why this is ?
and how do i other sin( and c...