Prove the above question and i will give you.​

see explanation

Step-by-step explanation:

Using the identity

cos²A - sin²B = cos(A + B) . cos(A - B)

Here A = + , B = -

Consider the left side

cos²( + ) - sin²( - )

= cos( + + - ) × cos( + - + )

= cos ( ) × cos ( A)

= cosA

=  right side , thus proven

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )