allyssazhr allyssazhr
  • 02-04-2017
  • Mathematics
contestada

how do you prove the identities?

1) 1- cos²Θ ≡ sin²Θ
2) (1-sin²Θ) tanΘ≡ cosΘ sinΘ

Respuesta :

ghanami
ghanami ghanami
  • 02-04-2017
hello :
1) 1- cos²Θ ≡ sin²Θ
cos²Θ + sin²Θ = 1
  sin²Θ = 1- cos²Θ


2) (1-sin²Θ) tanΘ≡ cosΘ sinΘ
 by 1) :
1-sin²Θ =cos²Θ
cos²Θ × tanΘ = cos²Θ × (sinΘ)/(cosΘ) =cosΘ sinΘ

Answer Link

Otras preguntas

Match the countries that were prominent during the Cold War with the leaders who represented them.
What is the difference between –4 and 6?
what does the blessing of liberty mean
which phrase from the excerpt gives the best evidence that “gaunt”
PLEASE HELP WITH ONE QUESTION [WORTH 99 POINTS]
If you are not fit, _____.
What could be one possible effect on human health due to an oil spill? A. Greenhouse gases being emitted into our atmosphere from the vessel can have a negative
How did Leonardo continue to learn about anatomy
Which best describes county governments? a. They are overseen by a mayor and department chairs. b. They are established as outlined by the US Constitution. c. T
Losing weight with Thyroid issues