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

which region of the western United States does the sub-region of New England border

which table represent a linear

North korea and iran were players in recent crises involving __________.

A company makes concrete bricks shaped like rectangular prisms. Each brick is 11 inches long,8 inches wide, and 5 inches tall. If they 11,000 in^3 used of concr

square root of a certain number is approximately 9.2371. The cedrain number is between what 2 integers.

Explain in a few sentences how and why obesity is considered a disease.

what does MAD mean in Deviation of Mean

there are too many potassium ions insidea cell. As result, the cell

Someone please help me answer these

Determine whether quantities vary directly or inversely and find the constant of variation. It took Peter 3 hours to drive to his friend in Connecticut when he