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

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

PLEASE HELP!!! Solve the equation. Round the answer to the nearest tenth. 3.2x = 4.6 x ≈ 1.4 x ≈ 14.7 x ≈ 1.5 x ≈ 1.3

10 POINTS, PLEASE HELP FAST! Is this statement true or false? Entire families in the Oaxaca Valley in Mexico often make woodcarvings called alebrijes. A.

Which word, if it occurred in a true/false question, would give you a hint at the correct answer? A.rarely B.sometimes C.often D.every

if the total cost C for p pounds of pepperoni if each pound cost 4.86

How science is related to future?

write the equation: tripling the greater of two consecutive even integers gives the same result as subtracting 10 from the lesser even integer.

Question 1 Which of theses are correct? (more than one can be correct for all of these) Villa Agricolae the farmer's farmhouse the farmers' farmhouse th

Which adjective is the most precise for describing a character in “Broken Chain”?

The three main causes of imperialism were economic causes, political causes and social/religious causes. Choose all of the following that are economic causes

How to I answer these please help