Why does y=cos(2x)sin(2x) simplify to y=sin(4x)/2 for derivatives?
1 answer:
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No, some of the terms changed signs, the correct option is C.
Given
Maggie used the commutative property to write;
The commutative property of addition states that the sum of any two numbers remains the same even when the position of the numbers is interchanged.
Then,
She did not apply the commutative property correctly because she changed the signs of 4/5 and 8 and in consequence, the result will not be the same.
A, B and C, for a commutative property
(A+B)+C = C+(A+B)
4/5 + 6.9y - 8 as the equivalent expression of:
6.9y + 8 - 4/5
Hence, No, some of the terms changed signs.
To know more about commutative property click the link given below.
Answer:
You can draw a graph.
(-3,2) |
(-2,1) |
___.__(-1,0)__ | __.____.___
| (1,-1)
|
|
As shown, the lines are intersecting. You can also tell that they are intersecting because if you draw a triangle, they are on the same line. (-3,2) and (-2,1) are directly diagonally from each other.
Hope this helps!
Answer:
The graph in the attached figure
Step-by-step explanation:
we have
This is the equation of a vertical parabola open up
The vertex is a minimum
Convert to vertex form
Complete squares
Factor the leading coefficient
Rewrite as perfect squares
The vertex is the point (-1.5,-1.5)
Find the zeros of the function
For y=0
square root both sides
Find the y-intercept
For x=0
The y-intercept is the point (0,3)
therefore
The graph in the attached figure
