How do you find the value of $cos ((pi)/2)$ using the graph?

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Answer 1 · 2016-02-12T09:35:13

$180^o" is "pi" radians. So "pi/2" is "90^o$
Tony B

$cos(pi/2)" "->" "(x,y)" "->" "(pi/2,0)$

The $cos(x)""$ is the value you read off from the y axis

How do you find the value of cos ((pi)/2)cos ((pi)/2) using the graph?