D/dx ( cos (4x)) = - sin (4x) · d/dx ( 4x) = - 4 sin (4x)
Answer:
If the Upper equation is 1 and the lower is 8:
1
7
8
6
5
Multiply the 12 by three and get 36. Then divide that by four and get 9
The answer is B
when taking a square root of 75 it is 8.66 which is between 8 and 9.
Answer:
The statement can be expressed as
There are two different students in your class who have visited the same websites.
Step-by-step explanation:
Given that
- W(x, y) mean that student x has visited website y.
- The domain of x consists of all students in your school
- The domain of y consists of all website.
It would help to know the meaning of the symbols used, this will help understand the statement better.
- ∧ means conjuction
- ∃ means 'there exists'
- ∀ means 'for all'
- ≠ means 'different from'
- ↔ means 'if and only if'
The statement
∃x∃y∀z((x ≠ y) ∧ (W(x, z) ↔ W(y, z)))
can be expressed as:
There are two different students in your class who have visited the same websites.
