For Exercises 64-68, use the fundamental trigonometric identities as needed. Given that cos π 12 = 2 + 6 4 , five the exact function values. a. sin 5 π 12 b. sin π 12 c. sec π 12
For Exercises 64-68, use the fundamental trigonometric identities as needed. Given that cos π 12 = 2 + 6 4 , five the exact function values. a. sin 5 π 12 b. sin π 12 c. sec π 12
Solution Summary: The author calculates the exact value of the functions when mathrmsin(5pi12) is a trigonometric function.
For Exercises 64-68, use the fundamental trigonometric identities as needed.
Given that
cos
π
12
=
2
+
6
4
, five the exact function values.
a.
sin
5
π
12
b.
sin
π
12
c.
sec
π
12
Equations that give the relation between different trigonometric functions and are true for any value of the variable for the domain. There are six trigonometric functions: sine, cosine, tangent, cotangent, secant, and cosecant.
Use the information to find and compare Δy and dy. (Round your answers to four decimal places.)
y = x4 + 7 x = −3 Δx = dx = 0.01
Δy =
dy =
4. A car travels in a straight line for one hour. Its velocity, v, in miles per hour at six minute intervals is shown
in the table. For each problem, approximate the distance the car traveled (in miles) using the given method,
on the provided interval, and with the given number of rectangles or trapezoids, n.
Time (min) 0 6 12 18|24|30|36|42|48|54|60
Speed (mph) 0 10 20 40 60 50 40 30 40 40 65
a.) Left Rectangles, [0, 30] n=5
b.) Right Rectangles, [24, 42] n=3
c.) Midpoint Rectangles, [24, 60] n=3
d.) Trapezoids, [0, 24] n=4
The bracket BCD is hinged at C and attached to a control cable at B. Let F₁ = 275 N and F2 = 275 N.
F1
B
a=0.18 m
C
A
0.4 m
-0.4 m-
0.24 m
Determine the reaction at C.
The reaction at C
N Z
F2
D
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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