subject

Mathematics, 01.01.2020 12:31 iisanchez27

Which expression is equivalent to cos(2α)cosα−sinα for all values of α for which cos(2α)cosα−sinα is defined?
select the correct answer below:

2

cosα+sinα

cot2α−2cos2α

2tanα1+tanα

2sinα1−tan2α

ansver

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 23:10, rave35

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.

Answers: 1

Mathematics, 22.06.2019 00:00, unkown77

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set. a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}

Answers: 1

Mathematics, 22.06.2019 00:20, heiddy0122

G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656

Answers: 1

Mathematics, 22.06.2019 01:30, malikbryant2002

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.

Answers: 2

You know the right answer?

Which expression is equivalent to cos(2α)cosα−sinα for all values of α for which cos(2α)cosα−sinα is...

Questions in other subjects:

Konu

Mathematics, 20.08.2020 02:01

PLS HELP ME!! ILL GIVE BRAINLIEST! Each student in Mr. Grinkov's class is either a junior or a senior. Mr. Grinkov took some students from his class on a field trip. Of the 24 jun...

Konu

Physics, 20.08.2020 02:01

The transmutation of a radioactive uranium isotope, 234/92U , into a radon isotope, 222/86Rn , involves a series of three nuclear reactions. At the end of the first reaction, a tho...

Konu

Mathematics, 20.08.2020 02:01

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning. Step Work Reasoning −4.5 + 4.2 + 5.6 − 7.3 Original problem 1...

Konu

Mathematics, 20.08.2020 02:01

A. Translate AABC 3 units horizontally. Label the image A'B'C'. How are the values in the ordered pairs affected by the translation?...

Konu

English, 20.08.2020 02:01

The Aztec game of pelota could still be played today exactly as it was originally, but one element of the game would have to be changed. What is that element?...

Konu

Mathematics, 20.08.2020 02:01

Which equation can be used to calculate the area of the shaded triangle in the figure below? A rectangle with length of 12 feet and width 4 feet. A diagonal cuts the rectangle into...

Konu

Mathematics, 20.08.2020 02:01

Sandra saves 13% of her salary for retirement. This year her salary was $3,000 more than in the previous year, and she saved $6,110. What was her salary in the previous year?

Konu

Physics, 20.08.2020 02:01

The distance covered by a body along the x axis is given by x=2t^3+5t^2+t where t is measured in seconds and x is in meter. Find average speed in a time interval from t= 0s and t=2...

Konu

History, 20.08.2020 02:01

You will write a letter which will be your own Declaration of Independence. You may address the letter to your parents or guardians, school, work, etc. List the reasons for you to...

Konu

Physics, 20.08.2020 02:01

A star is 21.6 light years from earth. How long would it take a spacecraft traveling 0.950c to reach that star as measured by observers?a. On earth (seconds)b Wn the spacecraft (se...

More questions: Mathematics Another questions