dennise401 dennise401

01-03-2020
Mathematics

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what is csc ( pie/2 ) =

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Kazeemsodikisola Kazeemsodikisola

01-03-2020

Answer:

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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