The following expressions (1+cosβ)(1−cosβ)sinβ is equivalent to sin³β
<h3>What are Trigonometric Ratios ?</h3>
In a Right angled triangle , trigonometric ratios can be used to determine the value of angles and sides of the triangle.
The trigonometric expression given in the question is
(1+cosβ)(1−cosβ)sinβ
(a+b)(a-b) = a² - b²
( 1 - cos²β)sinβ
By the trigonometric Identity
1-cos²β = sin² β
sin² β x sin β
sin³β
Therefore Option B is the correct answer.
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Hi!
We will solve this using ratios, like this:
1 shelf holds 45 pounds
x shelves hold 270 pounds
______________________
x = (270*1)/45
x = 270/45
x = 6
6 shelves will be needed to hold 270 pounds of boxes.
Hope this helps!
Answer: 3
PLOT AT THE POINT (-1, 3)
Step-by-step explanation:
Just plug in the X coordinate in the equation to get the answers.
Example in problem 2
Plug in X to find Y
Y= -1^2 + 2
Y = 3
Therefore, graph it at the point (-1,3)
Hope this was helpful !!
Answer:
x = 150
Step-by-step explanation:
Corresponding angles
180 - 60 = x-30
120 = x-30
150 = x