akinwunmijames26 akinwunmijames26

12-10-2020
Mathematics

contestada

prove that (Cosx-Cos³x)/Sinx=SinxCosx

Respuesta :

Azkanoor427 Azkanoor427

12-10-2020

Answer:

(Cosx-Cos³x)/Sinx=SinxCosx

Step-by-step explanation:

sin3x−cos3x

=sinxsin2x−cosxcos2x

=sinx(1−cos2x)−cosx(1−sin2x)

=sinx−sinxcos2x−cosx+cosxsin2x

=sinx−cosx+(sinx−cosx)sinxcosx

=(sinx−cosx)(1+sinxcosx

Answer Link

Otras preguntas

Combine the like terms to create an equivalent expression. 4p+6-3

give the coordinates of point A

If two perpendicular then they intersect to form _____angles.

Kesha spent a total of $9.60 on new shoelaces. Each pair cost $1.20. How many pairs of shoelaces did she buy

A historian would like analyze U.S. history using the historical thinking skill of periodization. Which of the following actions should he take? A. evaluate hi

¿En qué tiendas puedes pagar con tarjeta de crédito?

what did expansionist want the u.s. to do and what did they support

Which sentence describes a disadvantage of speaking? A. It won’t allow you to express emotion. B. You can’t learn it easily or quickly. C.you don’t have much ti

In the first paragraph Winthrop lists four things to be propounded, or offered for consideration, to his audience of Puritan colonists. Why might he have chosen

What’s the answer to estructura 6.1 saber and conocer