For Exercises 82-85, use a calculator to approximate the values of the left- and right-hand sides of each statement for A = 30 ° and B = 45 ° . Based on the approximation from your calculator, determine if the statement appears to be true or false. a. tan A − B = tan A − tan B b. tan A − B = tan A − tan B 1 + tan A tan B
For Exercises 82-85, use a calculator to approximate the values of the left- and right-hand sides of each statement for A = 30 ° and B = 45 ° . Based on the approximation from your calculator, determine if the statement appears to be true or false. a. tan A − B = tan A − tan B b. tan A − B = tan A − tan B 1 + tan A tan B
Solution Summary: The author evaluates whether the given statements are true or false based on the approximations from the calculator.
For Exercises 82-85, use a calculator to approximate the values of the left- and right-hand sides of each statement for
A
=
30
°
and
B
=
45
°
. Based on the approximation from your calculator, determine if the statement appears to be true or false.
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
The correct answer is C,i know that we need to use stokes theorem and parametrize the equations then write the equation F with respect to the curve but i cant seem to find a way to do it, the integral should be from 0 to 2pi but i might be wrongcould you show me the steps to get to 18pi
A 10-ft boom is acted upon by the 810-lb force as shown in the figure.
D
6 ft
6 ft
E
B
7 ft
C
6 ft
4 ft
W
Determine the tension in each cable and the reaction at the ball-and-socket joint at A.
The tension in cable BD is
lb.
The tension in cable BE is
lb.
The reaction at A is (
lb) i +
Ib) j. (Include a minus sign if necessary.)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities; Author: Mathispower4u;https://www.youtube.com/watch?v=OmJ5fxyXrfg;License: Standard YouTube License, CC-BY