SPreCalc7 6.2.002.
Question Description
Hey, I need help with the following questions please, they are quite easy but i’m running low on time
1.
SPreCalc7 6.2.001.
A right triangle with an angle θ is shown in the figure.
(a) Label the “opposite” and “adjacent” sides of θ and the hypotenuse of the triangle.
a:
b:
c:
(b) The trigonometric functions of the angle θ are defined as follows.
sin(θ) =
cos(θ) =
tan(θ) =
(c) The trigonometric ratios do not depend on the size of the triangle. This is because all right triangles with the same acute angle θ are .
2.
SPreCalc7 6.2.002.
The reciprocal identities state thatcsc(θ) =
| 1 |
sec(θ) =
| 1 |
cot(θ) =
| 1 |
3.
SPreCalc7 6.2.006.
Find the exact values of the six trigonometric ratios of the angle θ in the triangle.
| sin(θ) = | |
| cos(θ) = | |
| tan(θ) = | |
| csc(θ) = | |
| sec(θ) = | |
| cot(θ) = |
4.
SPreCalc7 6.2.008.
Find the exact values of the six trigonometric ratios of the angle θ in the triangle.
| sin(θ) | = |
|
| cos(θ) | = |
|
| tan(θ) | = |
|
| csc(θ) | = |
|
| sec(θ) | = |
|
| cot(θ) | = |
|
5.
SPreCalc7 6.2.009.
Find sin(α) and cos(β), tan(α) and cot(β), and sec(α) and csc(β).
(a)sin(α) and cos(β)
(b)tan(α) and cot(β)
(c)sec(α) and csc(β)
6.
SPreCalc7 6.2.013.
Use a calculator to evaluate the expression. Round your answer to five decimal places.(a)sec(17°)
(b)
tan(54°)
7.
SPreCalc7 6.2.017.
Find the side labeled x.
x =
| 7 |
8.
SPreCalc7 6.2.020.
Find the side labeled x. State your answer rounded to 5 decimal places.
x =
| 57° | 21 |
9.
SPreCalc7 6.2.022.
Express x and y in terms of trigonometric ratios of θ. (Express your answer in terms of θ only.)
| x | = | |
| y | = |
|
10.
SPreCalc7 6.2.024.MI.
Sketch a triangle that has acute angle θ.cos(θ) =
| 4 |
| 5 |
Find the other five trigonometric ratios of θ.
| sin(θ) | = |
|
| tan(θ) | = |
|
| csc(θ) | = |
|
| sec(θ) | = |
|
| cot(θ) | = |
|
11.
SPreCalc7 6.2.025.
Sketch a triangle that has acute angle θ.cot(θ) = 2
Find the other five trigonometric ratios of θ.
| sin(θ) | = |
|
| cos(θ) | = |
|
| tan(θ) | = |
|
| csc(θ) | = |
|
| sec(θ) | = |
|
12.
SPreCalc7 6.2.026.
Sketch a triangle that has acute angle θ.tan(θ) =
 |
3 |
Find the other five trigonometric ratios of θ.
| sin(θ) | = |
|
| cos(θ) | = |
|
| csc(θ) | = |
|
| sec(θ) | = |
|
| cot(θ) | = |
|
13.
SPreCalc7 6.2.029.
Evaluate the expression without using a calculator.sin
| π |
| 6 |
+ cos
| π |
| 6 |
14.
SPreCalc7 6.2.032.
Evaluate the expression without using a calculator.(sin 60°)2 + (cos 60°)2
15.
SPreCalc7 6.2.038.MI.
Solve the right triangle.
| 140 |
Find the length of the side adjacent to the given angle. (Round your answer to two decimal places.)
Find the length of the hypotenuse. (Round your answer to two decimal places.)
Find the other acute angle.
°
16.
SPreCalc7 6.2.041.
Solve the right triangle.
| 42.5 |
Find the length of the side opposite to the given angle. (Round your answer to two decimal places.)
Find the length of the side adjacent to the given angle. (Round your answer to two decimal places.)
Find the other acute angle.
rad
17.
SPreCalc7 6.2.047.
Find x rounded to one decimal place.
x =
| 130 |
18.
SPreCalc7 6.2.053.
The angle of elevation to the top of a very tall Building is found to be 8° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building. (Round your answer to the nearest foot.)
ft
19.
SPreCalc7 6.2.056.MI.
From the top of a 280-ft lighthouse, the angle of depression to a ship in the ocean is 27°. How far is the ship from the base of the lighthouse? (Round your answer to the nearest foot.)
ft
20.
SPreCalc7 6.2.057.
A 19-ft ladder leans against a building so that the angle between the ground and the ladder is 66°. How high does the ladder reach on the building? (Round your answer to the nearest foot.)
ft
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