Hello there!
Let me try :)
You decided to tell someone to make a book for you. You need to tell him what shape you would like the book to have. But since you want it to be quadrilateral, you need to go there and make sure that the person is doing it correctly. So that they don't give you the book with a shape of a triangle, then you would have problem to add it on your shelf because it wouldn't look interesting.
Note: A quadrilateral is defined as a polygon (a closed shape) with 4 sides,
so any shape/object with four sides can be considered a quadrilateral.
I hope this helps!
Answer:
18
Step-by-step explanation:
2 x(6+(12÷(3+1)))=18
Hope this helps you!!
It looks like the given equation is
sin(2x) - sin(2x) cos(2x) = sin(4x)
Recall the double angle identity for sine:
sin(2x) = 2 sin(x) cos(x)
which lets us rewrite the equation as
sin(2x) - sin(2x) cos(2x) = 2 sin(2x) cos(2x)
Move everything over to one side and factorize:
sin(2x) - sin(2x) cos(2x) - 2 sin(2x) cos(2x) = 0
sin(2x) - 3 sin(2x) cos(2x) = 0
sin(2x) (1 - 3 cos(2x)) = 0
Then we have two families of solutions,
sin(2x) = 0 or 1 - 3 cos(2x) = 0
sin(2x) = 0 or cos(2x) = 1/3
[2x = arcsin(0) + 2nπ or 2x = π - arcsin(0) + 2nπ]
… … … or [2x = arccos(1/3) + 2nπ or 2x = -arccos(1/3) + 2nπ]
(where n is any integer)
[2x = 2nπ or 2x = π + 2nπ]
… … … or [2x = arccos(1/3) + 2nπ or 2x = -arccos(1/3) + 2nπ]
[x = nπ or x = π/2 + nπ]
… … … or [x = 1/2 arccos(1/3) + nπ or x = -1/2 arccos(1/3) + nπ]
Answer:
16+w
Step-by-step explanation:
The problem to solve is:
6+4+(w+2)+4
6+4 evaluates to 10
w+2 evaluates to w+2
10 + 2 = 12
The answer is 12+w
6+4+(w+2) evaluates to 12+w
12 + 4 = 16
The answer is 16+w
6+4+(w+2)+4 evaluates to 16+w
The final answer is
16+w
