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Mathematics
Serenity English
18 March, 02:52
What is csc (pie/2) =
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Jace
18 March, 04:34
0
Step-by-step explanation:
Cos (pie/2)
Pie is π
This shows that the π is in radian
2πrad = 1 complete revolution
2πrad = 360°
Divide both side by 2
πrad=180°
So let substitute πrad=180° into the cosine
Cos (π/2) = Cos (180/2)
Cos90
Cos 90 is zero
Cos (pie/2) = 0
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