kittenpolish kittenpolish

16-10-2020
Mathematics

contestada

Rewrite with only sin x and cos x. sin 3x - cos x

Respuesta :

2612rashi 2612rashi

16-10-2020

Answer:

sin(3x) = sin(x + 2x)

= sinx cos(2x) + cosx sin(2x)

= sinx [1 - 2sin2x] + cosx [2sinxcosx]

= sinx - 2sin3x + 2cos2xsinx

Answer Link

Otras preguntas

In which medium would sound travel the fastest? A) across a room B) in a swimming pool C) through outer space D) through a railroad track

General Robert E. Lee General Robert E. Lee and many other southern military commanders had been educated at the U.S. military academy at West Point, and had pl

Where can the greatest depths be found in the ocean? Right after the continental shelf ends On either side of a rift valley In ocean trenches Where underwater

whats y=6x-18y=4x-10

What does the repetition of the word "neutral" throughout "How We Entered World War I" emphasize? the author's lack of bias in researching the events that led t

which method keeps the system cooling more efficient

which best describes the author's intent in this poem?

As nationalism fueled the powerful nations of Europe around the year 1900, what did these nations do? A. took colonies for themselves in other parts

Solve each equation for the indicated variable. Please use a separate sheet of paper to show your work. 1. Solve 6 = mx + b for x ____________________

20 points! Which ordered pair is a solution to the system of equations? {2x−y=−2 5x−2y=−7 A.(−3, −4) B.(−1, 1) C. (7, −3) D. (2, −6)