Exercises 101-103 will help you prepare for the material covered in the next section. Use the appropriate values from Exercise 101 to answer each of the following. a. Is cos ( 30 ∘ + 60 ∘ ) , or cos 90 ∘ , equal to cos 30 ∘ + cos 60 ∘ ? b. Is cos ( 30 ∘ + 60 ∘ ) , or cos 90 ∘ , equal to cos 30 ∘ cos 60 ∘ − sin 30 ∘ sin 60 ∘ ?
Exercises 101-103 will help you prepare for the material covered in the next section. Use the appropriate values from Exercise 101 to answer each of the following. a. Is cos ( 30 ∘ + 60 ∘ ) , or cos 90 ∘ , equal to cos 30 ∘ + cos 60 ∘ ? b. Is cos ( 30 ∘ + 60 ∘ ) , or cos 90 ∘ , equal to cos 30 ∘ cos 60 ∘ − sin 30 ∘ sin 60 ∘ ?
Solution Summary: The author explains that the left side of the expression is not equal to the right side.
Find the linear regression line for the following table of values. You will need to use a calculator, spreadsheet, or statistical software.
Enter your answer in the form y = ma + b, with m. and b both rounded to two decimal places.
1
2
3
4
5
6
5.46
7.6
9.11
14.3
18.93
19.45
Find the perimeter and area
Assume {u1, U2, us} spans R³.
Select the best statement.
A. {U1, U2, us, u4} spans R³ unless u is the zero vector.
B. {U1, U2, us, u4} always spans R³.
C. {U1, U2, us, u4} spans R³ unless u is a scalar multiple of another vector in the set.
D. We do not have sufficient information to determine if {u₁, u2, 43, 114} spans R³.
OE. {U1, U2, 3, 4} never spans R³.
F. none of the above
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Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities; Author: Mathispower4u;https://www.youtube.com/watch?v=OmJ5fxyXrfg;License: Standard YouTube License, CC-BY