ahenley9898 ahenley9898

11-05-2017
Mathematics

contestada

Verify the identity secx-secx sin^2x=cosx

Respuesta :

ghanami ghanami

11-05-2017

hello :
* secx = 1/cosx
cos²x+sin²x= 1
**sin²x = 1-cos²x
by (*) :
secx-secx sin²x=(1/cosx) -(1/cosx) sin²x
= (1/cosx)(1- sin²x)....factory :(1/cosx)
by(**)
secx-secx sin²x = (1/cosx)cos²x
secx-secx sin²x = cosx ...( simplify by : cosx)

Answer Link

Otras preguntas

What is an example of brand promotion A.charging a premiumB.providing a warrantyC.providing after-sales serviceD.attending a trade show

Which activity helps the mother feel comfortable in America? going to the mall and movies writing poetry inventing gadgets reading newspapers from the Dominican

which two triangles are congruent? Complete the congruence statement

HELP!!!!! WILL MARK BRAINLIEST 10 POINTS

Gabby says that 8 is a common multiple of 16 and 24. Mark says that 8 is a common factor of 16 and 24. Who is correct?

What maneuvers are required on a driving exam? (please list all maneuvers, not a couple)

PLEASE HELP QUICK 100 POINTS Do you think ASL expression is influenced by the body language, tone of voice, or other expressions that go along with English? Ho

For 10 points, Which of the following containers is the most likely to have a capacity of 38 L? kitchen sink bottle of hairspray water tower

Both the nervous and endocrine systems send electrical and chemical signals for internal communication. Please select the best answer from the choices provided

2. How do these three concepts (continuity, identification, and differentiation) contribute into the understanding of the substance nature of the multidimension