Answer:

Step-by-step explanation:
We are given the following in the question:

We have to estimate the value of f(-6,-1)
By Taylor approximation we have:

Now, putting values, we get,

is the required value.
(-2)^3 - 6(-2)^2 + 5(-2) + 1
-8 - 24 -10 + 1
-41
Step-by-step explanation:
From Trig
1 + tan²x = Sec²x
Also
Sec²x = 1/cos²x
Now
Cot²x = 1/tan²x = cos²x/sin²x
Putting all together
Cot²x(1+tan²x)
= Cot²x(sec²x)
= cos²x/sin²x(1/cos²x)
cos²x on the numerator and that one the denominator cancels out
we have
= 1/sin²x
From Trig
1/sin²x = cosec²x
So Our Answer = cosec²x.
Answer:
$38.06
Explanation:
Multiply $31.20 by 0.22 (22%)
Which equals 6.864
Add that to $31.20 and you get 38.064
Then you round it and get $38.06