myrk
myrk
10-05-2017
Mathematics
contestada
What is the exact value of sin -840
Respuesta :
Аноним
Аноним
10-05-2017
first subtract 2 revolutions from the - 840 :- (- (840-720) = -120
This gives sin -120 which is in the 3rd quadrant of the unit circle
sin -120 = - sin 60 = - sqrt3/2
Answer Link
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
Gold has a density of 19.3 g/cm^3 and can be rolled into very thin sheets. if a 285 mg sample of gold is rolled into a "circle" of radius 0.78 cm. Find the thic
Informal letter to mother living in other state explaining her importance in your life struggle success and happiness
A balance is best used to measure a sample’s _______. a. volume b. length c. mass d. size please select the best answer from the choices provided a b c d
Journaling (keeping a private journal in which you write down your feelings and thoughts with the intention that only you will read it) is an example of
Please help! (´･_･`) Factor 60-36w to identify the equivalent expressions. choose TWO answers. A. 6(10-6w) B. 4(15-8w) C. 12(5-3w) D. 3(20+12w)
What do you think are the most important elements of culture?
A group where people systematically sever relationships from functioning tribes, and then pool together with people who think like they do?
What was the Articles of Confederation why did it fail quizlet?
on an unknown temperature scale, the freezing point of water is -15°U and the boiling point is +60°U. develop a linear conversion equation between this temperat
which of the following best describes Benin's relationship with the slave trade
