Use the functions f(x)=7x3−3x2−x+14 f x = 7 x 3 - 3 x 2 - x + 14 and g(x)=2x3+2x+5 g x = 2 x 3 + 2 x + 5 as examples to show that the set of polynomials is closed under subtraction.

Step-by-step explanation:

Given that the functions f ad g are defined by

and respectively.

Now subtract the given polynomials

∴

∴ are closed under subtraction,

Hence showed.

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: