8 - 7x^2 + 3 = 4x^2 - 1
8+3-7x^2 = 4x^2-1
11-7x^2 = 4x^2-1
B. Commutative property of addition
We can swap numbers and obtain the same results.
In this case, we swapped 8+3 and added them.
Answer: 1
Step-by-step explanation:
When dividing fractions, we follow a rule called keep, change, flip:
3/11 * 11/3
33/33
1
Answer:
<h2>The answer is option C</h2>
Step-by-step explanation:

Using trigonometric identities
That's

Rewrite the expression
That's

Simplify
We have

So we have
3( - 1)
We have the final answer as
<h2>- 3</h2>
Hope this helps you