lowehan002 lowehan002

26-04-2021
Mathematics

contestada

If cos A= -4/5 and A is in the second quadrant, then cos 2A = ?

Respuesta :

briarhoff55 briarhoff55

27-04-2021

Answer:

i think its second pythagreom therom

Step-by-step explanation:

because

Answer Link

Otras preguntas

A 4 kg book and a 7 kg lamp are both in the living room. If the force of gravity between them is 2.99x10^-10 N. How far apart are they? A. 1.8 m B. 6.3 m C. 2.1

a fast food restaurnant had 13 pounds of flour if they split rhe flourevenly among three batches of chicken how much flour would each batch use? between what tw

what is the answer to this

Which of the following describes a major outcome of Mao Zedong's Great Leap Forward policies? a. Collectivization of labor was stopped, as it had offered peasan

The Roman playwright who used puns in his farces was _____ a. Seneca b. Plautus c. Terrence d. Aristotle

Which of the following would be not considered philosophes? a. Philosophers c. Economists b. Writers d. Warriors

Which of the following statements is true? a. You should exercise for at least 20 minutes, five times a week to maintain cardiorespiratory endurance. b. In orde

Which best describes industrialization in England and Japan? a. Japan overtook England to become the largest industrial power by the late 1800s. b. England patt

which of the following terms could be applied to the united states during the cold war? a. autocratic b. communist c. free press d. total censorship

What was the political structure of the modern-day nation of Germany in the 1860s? a. By the 1860s, the modern-day nation of Germany was finally unified under o