MapleBacon MapleBacon

09-12-2017
Mathematics

contestada

Find the exact value of the expression
cos10°cos20°-sin10°sin20°
Please Help

Respuesta :

zizoux07p0ac3m zizoux07p0ac3m

09-12-2017

cos10 cos20 -sin10 sin20 = cos(10+20) = cos30 = √3/2

Answer Link

Otras preguntas

The massacre at Wounded Knee in 1890 occurred in response to a. the spread of the Ghost Dance movement. b. the US Army’s humiliation at Little Bighorn. c. the u

U.s. foreign policy shifted away from ________ to international involvement

Which term best defines the primitive instinct for the body to defend itself?

Six more than fives times a number (x) is at least 21. I need an inequality.

Operation Barbarossa was the Nazi German military invasion of A. China. B. France. C. U.S.S.R. D. Great Britain

Which of the following is a true statement? A) a short story is fictional, while an autobiography is non-fiction. B) an autobiography contains only one charac

By gaining possessions and influence in Asia and the Americas during the Spanish-American War, the United States

Jacques Cartier sailed to the New World in 1534 in search of A. Montreal. B. Newfoundland. C. the Gulf of St. Lawrence. D. a northwest passag

How do different cells in your body help you survive?

What is the definition for “cadence”? a disgusting person wandering around a large area the rhythmic flow of sound or music quickly filling up a container