Which function has zeroes at npi, where n is an integer? select 2. y=cos x y=cot x y=csc x y=sec x y=sin x y=tan x

ANSWER

EXPLANATION

The trigonometric function that is zero at integral values is the sine function.

That is;

has x-intercepts at

where n is an integer.

In other words, the solution to the equation:

is

where n is an integer.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.