what is csc ( pie/2 ) =

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

the correct answer is x/3+10≥32

hope this !

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length