For the following exercises, prove the identities. cos(3x) = cos 3 x 3 sin 2 x

Question:

For the following exercises, prove the identities.

cos(3x) = cos³ x − 3 sin² x cos x

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Precalculus

ISBN: 9781938168345

1st Edition

Authors: Jay Abramson

See More Books

Question Posted: Jun 17, 2022 01:07 AM

See More Questions

Verify that the following are identities (see Example 6). (a) Sin2 v + 1/ sec2 v = 1 (b) Cos 3t = 4 cos3 t - 3 cos t (c) Sin 4x = 8 sin x cos3 x - 4 sin x cos x (d) (1 + cos ) (1 - cos ) = sin2
In Exercises 1-4, use the fundamental identities to simplify the expression. (There is more than one correct form of each answer). 1. tan cot / sec 2. cos ( / 2 - x )sec x 3. tan2 x - tan2 x sin2...
Consider the function f(x) = 94 cos3 x 24 cos x + 177 sin2 x 108 sin4 x 72 cos3 x sin2 x 65 on the interval [0, 3]. Plot the function on the interval, and find all three roots to six correct...
The atomic mass of 14c is 14.003242 u. Show that the decay of 14C is energetically possible, and calculate the energy released in the decay.
Outline the differences between permission marketing and interruption marketing including reference to the terms opt-in and opt-out.
Use Mark Gilley's FlashCard statement. There is an error in his bill. The average daily balance, finance charge, available credit, and new balance amounts are not filled in. You can find a copy of...
Suppose there is a risk-free asset in zero net supply and the risky asset returns have a statistical factor structure Ri = ai +b i F + i , wherethe i have zero means and are independent of each other...
Since LSUS corporation is producing at full capacity, Amanda has decided to have Han examine the feasibility of a new manufacturing plant. This expansion would represent a major capital outlay for...
PARTE A: Sparty Corporation ajusta sus cuentas solo al final del ao. La siguiente informacin est disponible como fuente para preparar asientos de ajuste al 31 de diciembre de 2020. Durante julio de...
The Desk PC Division has prepared comparative income statements using the variable-costing and absorption-costing. methods. (Click the icon to view the comparative variable costing income statement.)...
For the following exercises, model the described behavior and find requested values. An invasive species of carp is introduced to Lake Freshwater. Initially there are 100 carp in the lake and the...
For the following exercises, prove the identity. cos(2y) - cos(4y) sin(2y) + sin(4y) tan y
How are the weighted-average and FIFO process-costing methods applied to transferred-in costs?
Archer Contracting repaved 50 miles of two-lane county roadway with a crew of six employees. This crew worked 8 days and used $$7,000$ worth of paving material. Nearby, Bronson Construction repaved...
An insurance company has the following profitability analysis of its services: The fixed costs are distributed equally among the services and are not avoidable if one of the services is dropped. What...
The Scantron Company makes bar-code scanners for major supermarkets. The sales staff estimates that the company will sell 500 units next year for 10,000 each. The production manager estimates that...
Determine the following: a. The stockholders equity of a company that has assets of $\$ 625,000$ and liabilities of $\$ 310,000$. b. The retained earnings of a company that has assets of \(\$...
You are the manager of internal audit for Do-It-All, Ltd., a large, diversified, decentralized manufacturing company. Over the past two years, the information systems function in Do-It-All has...
1. On what basis did the judges rate the quality of houses? How many of the criteria in Table 2.1 did they use? 2. How did your group decide on a way to make its house? How well did your group work...
The following data are supplied for the common stocks of Nikola Corporation, Tesla, Inc. and General Motors: Nikola Corp (NKLA) Tesla Inc. (TSLA) Close Price ($) Close Price ($) 67.53 30.00 40.81...
For the polynomial function f (x) = 3x 4 15x 3 12x 2 + 60x (a) Determine the end behavior of the graph. (b) Find the x- and y-intercepts of the graph. (c) Find the real zeros and their...
Problems 1221. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for later sections, a final exam, or subsequent courses such as calculus....
The data below represent the expected percentage of putts that will be made by professional golfers on the PGA Tour, depending on distance. For example, it is expected that 99.3% of 2-foot putts will...
What is the risk profile of your company? (How much overall risk is there in this firm? Where is this risk coming from (market, firm, industry or currency)? (APPLE COMPANY LATEST DATA) How is the...
What is the duration for the following bond with annual payments? 5.6300 5.7957 4.9894 5.1910 5.3806
DOLLAR TREE GROCERY OUTLET Short-Term Liquidity 2021 2022 2021 2022 Current Ratio 1.35 1.51 1.86 1.67 Quick Ratio 0.24 0.15 0.63 0.42 Cash Ratio Cash Conversion Cycle 34.78 45.75 19.41 21.61 Days...

For the following exercises, prove the identities. cos(3x) = cos 3 x 3 sin 2 x

Question:

Step by Step Answer:

cos3x cos 3 x 3 sin 2 x cos x Its true for all values of x We are to pro...View the full answer

Precalculus

Students also viewed these Mathematics questions