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

Malik is employed by an architecture firm. Malik most likely works in Construction. Pre-Construction. Maintenance. Operations.

PLEASE HELP: Find the inverse of the function r(t)=5^t. Those are the answer choices.

The modulus of (1 + 2i)4 is _____. 5 20 25 625

Complete the missing parts of the paragraph proof. Draw a perpendicular from P to AB. Label the intersection C. We are given that PA = PB, so PA ≅ PB by the de

each of the following types of figurative language is used in the excerpt except

How did the United States try to help European nations devastated by World War I? It rebuilt their industrial complexes. Americans gave them money free of cha

line HF is tangent to circle D at point E. SEgment DE is the radius of circle D, what is true about DEF? A.angle DEF is congruent to angle DEH B.angle DEF is an

Who does cassio wound in a fight ? What does Iago recommend cassio do to get his job back ?

ANTIGONE: Look at me, my native citizens, as I go on my final journey, as I gaze upon the sunlight one last time, which I’ll never see again—for Hades, who brin

Match each term with its definition. 1. responsible for the proper conduct of the election 2. used to elect the President, Vice President, and members of Con