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

Tori received a $20 gift card for school supplies. Paper is $5 per pack and notebooks are $3 each. If Tori purchases 1 pack of paper. How many notebooks is Tori

If methods used in molecular systematics were not developed what would be the effect on the study of systematics?

Can someone please give me the (Answers) to this? ... please ... I need help….

As the chain length of a hydrocarbon is increased the heat of vapourization increases because Select one: O a. the molecules have greater weight O b. there are

Find the equation of the line that goes through the points (2, 2) and (6, 6). y = 6x + 2 y = -x y = 2x + 6 y = x

How did coastal geography influence the growth of eastern African civilizations?

A cone has a base with a diameter of 12 inches and a height of 15 inches. What is the volume of the cone in cubic inches using 3.14 for 77?

How long does it take most dishes to air dry

Stem-changing verbs. Fill in the blank with the correct form of stem-changing verbs 1. Juan _________ las palabras de la canción. a. repito b. repites c. rep

1. Given: LMN ~ QPR, find RQ.