Show that tan2theta - tantheta = tantheta*sectheta​

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

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

i'll be glad to : )