The given terms are two terms apart, so their difference is twice the difference of adjacent terms.

The value of d is 4.
Answer:
For
, the group is CLOSED as it a polynomial.
Step-by-step explanation:
Here, the given polynomials are:

Now, a group G is said to be <u>CLOSED UNDER SUBTRACTION</u> if,
a and b are he elements of G ⇒ (a-b) is ALSO AN ELEMENT of G
Now, here:

or, 
Also, R(x) is a POLYNOMIAL.
So, R(x) is an Element of group G.
So, the set G of polynomials.
Hence, for the polynomial
, it will be a polynomial the group is CLOSED.
Answer:
f'(x) = cos(3x^2)(6x)
Step-by-step explanation:
(d/dx)(sin u) = cos(u)·du/dx . . . . . chain rule
For f(x) = sin(3x^2), this means ...
f'(x) = cos(3x^2)(6x)
Answer:
see answer above for your question
A is the correct answer buddy.
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