samantha33 samantha33

10-08-2016
Mathematics

contestada

cos (a-b) - cos (a+b) = 2 sin a sin b

Respuesta :

Panoyin Panoyin

10-08-2016

cos(a - b) - cos(a + b) = 2sin(a)sin(b)
[cos(a)cos(b) + sin(a)sin(b)] - [cos(a)cos(b) - sin(a)sin(b)] = 2sin(a)sin(b)
[cos(a)cos(b) - cos(a)cos(b)] + [sin(a)sin(b) + sin(a)sin(b)] = 2sin(a)sin(b)
2sin(a)sin(b) = 2sin(a)sin(b)

Answer Link

Otras preguntas

For this assignment, you will create a brochure about the local resources available for people interested in receiving education and training for jobs and caree

pleasss help meee alot of poins

Change the following sentences according to directions.(a) every student wants to do well in the examination. (negative) (b) we must follow the traffic rules. (

TUO 1127109%ETMiguel y Esteban eran amigos. Iban juntos a la escuelay vivían en la misma calle. Miguel era un niño muy bueno,pero Esteban era arrogante y malcri

Este restaurante es muy ______.baratobaratabaratospls help 10 points tyspanish not world languages xD

Using land to grow food crops is an example of a Desertification b Agriculture C Mining d Development

Where are jet streams found? close to the poles in the middle latitude toward the equator in the upper atmosphere

Vilgot made a hat, then a scarf. He graphed the relationship between the total weight (in grams) of the yarn he had used and the length (in centimeters) of the

5. A neighborhood sportswear store sells a pair of Nike sneakers for $40. Due to the recent fitness craze, these shoes are in high demand: 50 pairs of shoes are

Why was it easier for the Church to admit Galileo was right in 1979, than it was in 1633?