What is the expression for cot(5pi/9)?

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d