To verify the identity we need the following identities:
i)

ii)

iii)

.
Also, we have know that

and

Thus,

By (ii) and (iii) we have:

by simplifying

and

Now,

is clearly -tanx.
Answer:
Step-by-step explanation:
We would assume that a randomly selected registered voter, x is classified as a conservative or not. It means that there are only 2 possible outcomes. Thus, it is a binomial probability distribution and the probability of success, p is that a randomly selected voter is classified as a conservative. Therefore,
p = 20% = 20/100 = 0.2
Number of trials, n = 10
Number of success, x = 6
The probability that six out of 10 would be conservatives is expressed as
P(x = 6)
Using the binomial probability calculator,
P(x = 6) = 0.0056
The greatest common factor is 12.
Answer:
the correct answer is 3 times the difference of 62 and 42
Answer:
(
x
+
2
)
(
8
+
y
)
Step-by-step explanation: