kayericaedwards kayericaedwards

24-04-2018
Mathematics

contestada

Verify that cos (270° - q) = -sin q is an identity.

Respuesta :

Blitztiger Blitztiger

24-04-2018

See the attached picture. cos(270 - q) = adjacent/hypotenuse for the red triangle = -a/c. Note the -a is because this is in the -x direction.
sin q = a/c, so -sin q = -a/c.
Therefore, cos(270 - q) = -sin q is true.

Ver imagen Blitztiger

Answer Link

Otras preguntas

Shawn is creating a negotiable instrument to give to craig and shawn does not want to involve a financial institution. which type of negotiable instrument will

The primary difference between a work breakdown structure and a work sequence draft is that the work sequence draft shows ___________________.

Using the context clues, what is the meaning of the underlined word? quiet subtle harmonious shrill

Compared to other imc alternatives, for what purpose advertising is extremely effective?

Chron = "time" review the word root on the left. what is the best definition of the word chronic in the sentence below? johanna has a chronic cough. loud long-l

Do you think that by releasing the Pentagon Papers, did Ellsberg put the nation, or the world, at risk? To what extent should the government be allowed to have

The weight of football players is normally distributed with a mean of 180 pounds and a standard deviation of 20 pounds. what is the probability of a player weig

On Monday, Cinthia studied for 3 1/2 hours. On Tuesday, she studies 2/3 of her study time on Monday. How many hours did Cinthia study on Tuesday?

The difference between interactionist and syntax-first explanations for sentence parsing is __________ plays a role group of answer choices if word meaning when

According to mary ainsworth, a(n) _____ infant avoids the mother or is ambivalent toward her, fears strangers, and is upset by minor, everyday separations.