C) f(x) = -1/2 sin x is the answer.
Answer:
We obtain same product by both the methods.
Step-by-step explanation:
We are given the following in the question:
Commutative property of multiplication:

Different ways to find the product:
1. First way

2. Second way

We get the same product for both the calculations.
Answer:
D
Step-by-step explanation:
Consider the equation:

Use distributive property in both sides:

Separate terms with x into the left part and terms without x into the right part:

Since you get true equality 0 = 0, the equation is true for all real values of x. So, the equation has infinitely many solutions.
You have 2+2 in each 2 there are 1's so
2=(1+1) 2=(1+1) =4
4=1+1+1+1
2+2=4
think of 2's as 1's when adding did you know 2x2= 4 as well.