alessacromano alessacromano
  • 01-12-2017
  • Mathematics
contestada

tan80+tan70/1-tan80tan70

Respuesta :

chudung1976
chudung1976 chudung1976
  • 01-12-2017
We have the formula tan(a+b)= (tana+tanb): (1-tana x tanb)
And now we have a=80, b=70 and
(tan80+tan70): (1-tan80 x tan70)= tan(80+70)= tan150
If you write 70 for 70°, we have tan150°=1/√3
Merry Christmas
Answer Link

Otras preguntas

Ben works as a medical assistant. He needs to take a patient's vitals, but the patient is refusing to cooperate. He hasn't experienced this before, so he decide
Is speed the rate of change in the velocity of a moving body?
why are a 12 ounce hard seltzer and 1.5 ounces of liquor both standard drinks
If (x^2−1)/(x+1) = 3x + 5, then x + 3 = (A) -3 (B) -2 (C) 0 (D) 2 (E) 4
Given equation x-y=2. Find x and y.​
According to a report by the U.S. Centers for Disease Control and Prevention (CDC) on Tuesday, the delta strain is more contagious than MERS and SARS, and is as
A roller coaster has a total track length of 500 yards. A complete ride on the roller coaster is considered two times around the track. The start and stop place
find the words that are closest in the following definition with many hill​
đảng cộng sản là gì?
prior to a medical assistant applying oxygen to a patient, what must a medical assistant get from the provider?