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
VER TODAS LAS RESPUESTAS ( 79+ )
Otras preguntas
What is the solution of the system? 5x-y=-7 3x-y=-2
Write a balanced equation for the reduction of 9-fluorenone to 9-hydroxyfluorene by sodium borohydride. What is the limiting reagent in the following procedure?
I need the answer to this ponlem
What health topic would you choose and what medium would you use to convey your message?
When people talk about natural resources, they usually mean (1 point) vegetation. water. minerals. all of the above•• 2. Geothermal energy is considered a (1 p
The boys got into bed Byron was up in his top bunk and Kenny was down in the bottom Kenny was so exited that he was talking a mile a minute although he realized
How many time zones are there in the united states?
Which energetic and emotional style of music developed in response to cool jazz and featured fats tempos, loud dynamics, and blues and gospel influences? bebop
can cats understand humans?
Match the definition to the word. 1. renovate a. glorify 2. exalt b. remodel 3. blackguard c. miserable 4. dissociate
