Without using a calculator, show that 3cos /3 = sin /3.

Question:

Without using a calculator, show that 3cos² π/3 = sin² π/3.

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

Step by Step Answer:

Related Book For book-img-for-question

Cambridge IGCSE And O Level Additional Mathematics

ISBN: 9781510421646

1st Edition

Authors: Val Hanrahan, Jeanette Powell

See More Books

Question Posted: Sep 03, 2021 01:50 AM

See More Questions

Without using a calculator find the value of each of the following, and then use the n C r key on your calculator to check your answers. a. 5 C 1 b. 6 C 3 c. 4 C 4 d. e. f. 4)
Evaluate each expression without using a calculator or state that the value does not exist. Simplify answers to the extent possible. a. cosh 0 b. tanh 0 c. csch 0 d. sech(sinh 0) e. coth(ln 5) f....
Without using a calculator or a table of logarithms, find the following: (a) ln (100.000), (b) ln (0.0010000), (c) log 10 (e)
Figure (a) shows a mobile hanging from a ceiling; it consists of two metal pieces (m 1 = 3.5) kg and m 2 = 4.5kg) that are strung together by cords of negligible mass. What is the tension in?? (a)...
Obtain the moles of substance in the following. a. 2.86 g C b. 7.05 g Cl2 c. 76 g C4H10 d. 26.2 g Al2(CO3)3
Merck & Co., Inc. is a global, research-driven pharmaceutical company that discovers, develops, manufactures, and markets a broad range of human and animal health products. The following are excerpts...
Once appropriate applicants are found for the 20 new locations, what selection procedures should the company use? Be specific. LO3
1. Using the rules of thumb for reducing the risks related to introducing an innovative new product, how well are Teal and Pate likely to do with the ElliptiGo? 2. What are the primary benefits and...
Granite Company purchased a machine costing $132,000, terms 1/10, n/30. The machine was shipped FOB shipping point and freight charges were $3,200. The machine requires special mounting and wiring...
Palmer Corporation, operating as a US. corporation, expects to order goods from a foreign supplier at a price of 200,000 pounds, with delivery and payment to be made on April 15. On January 15,...
Write the following as integers, fractions, or using square roots. You should not need your calculator. a. sin 45 b. cos 60 c. tan 45 d. sin 120 e. cos 150 f. tan 180 g. sin 405 h. cos (45) i. tan 225
Prove that 1 (sin con ) 2 /sin cos = 2.
Null and alternative hypotheses for a test are given. Give the notation (x, for example) for a sample statistic we might record for each simulated sample to create the randomization distribution. H 0...
Write out the form of the partial fraction decomposition of the function (See Example ). Do not determine the numerical values of the coefficients. (If the partial fraction decomposition does not...
Below is the actual assignment information. Here is where you will submit your event for approval. It is not graded, but you will need it to be marked complete in order to submit your paper, so...
3. (20 points) A researcher is interested in whether the phonics method of teaching reading is more or less effective than the sight method, depending on what grade the child is in. Twenty children...
Let A and B be the matrices given below: -5 9 -7 A= 8 -1 -3 B=9 6 -1 8 -1 -7. 0 Perform the following matrix operations and enter the entries below: -4A = A-4B = 5A-3B=
The product business can be isolated into four principal classes: programming administrations, framework administrations, open source and SaaS. The accompanying depicts the classifications of...
Due to the Great Recession (20082010), new car sales plunged from 16.9 million cars sold in 2005 to 10.4 million cars sold in 2009. This trend resulted in a significant shortage of used cars during...
Which of the following gives the range of y = 4 - 2 -x ? (A) (- , ) (B) (- , 4) (C) [- 4, ) (D) (- , 4] (E) All reals
A curve has equation y = x/x 2 + 1. i. Find the coordinates of the stationary points on the curve. ii. Show that d 2 y/dx 2 = px 3 + qx/(x 2 + 1) 3 , where p and q are integers to be found, and...
Find the coordinates of the stationary points on these curves and determine their nature. a. y = 4 sin x + 3 cos x for 0 x /2 b. y = 6 cos x/2 + 8 sin x/2 for 0 x 2 c. y = 5 sin (2x + /2) for /6...
The diagram shows a circle, centre O, radius r cm. The points A and B lie on circle such that angle AOB = 2 radians. i. Find, in terms of r and , an expression for the length of the chord AB. ii....
What is the NPV of a project that costs $34,000 today and is expected to generate annual cash inflows of $11,000 for the next 7 years, followed by a final inflow of $14,000 in year 8. Cost of capital...
help!!! Use the above information to calculate ending inventory using FIFO for a company that uses a perpetua/inventory system
Rocky Mountain Chocolate Factory (RMCF) founder and president Frank Crail employs 220 people in 361 outlets in the United States, Canada, United Arab Emirates, Japan, South Korea and Saudi Arabia. If...

Without using a calculator, show that 3cos /3 = sin /3.

Question:

Step by Step Answer:

given 3cos 2 3 sin 2 3 we know tha...View the full answer

Cambridge IGCSE And O Level Additional Mathematics

Students also viewed these Sciences questions