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

what genre plot includes a problem that needs to be solved
PLEASE!!! I NEED HELP WITH THIS ASAP!!! part 1) Joaquim Alvez purchases 32 bonds that mature in 2024 at 96.7. They have a coupon rate of 8.625%. Find the tota
A patient does not respond to verbal stimuli, so the nurse applies painful stimulus and notes the patient's reaction. the patient clenches his teeth, and his ar
Which sentences contain a restrictive or nonrestrictive relative clause? Choose all that apply. The car, which took Miah months of saving money to buy, is parke
If x−y=80 and 3/5 = y/x , then what is the value of x? (15 POINTS AND FREE BRAINIEST ANSWER!!)
solve the function y = x2 − 18x.
How much water is recommended before exercise? A. 24 ounces 2 hours before B. 20 ounces 2 hours before C. 16 ounces one hour before D. 8 ounces o
Many historians think the Athenian people made their greatest achievements in art, literature, and politics between 460 and 429 B.C.E. This time period is also
Domestic cats can begin reproducing as young as six months of age. each female cat can produce two litters per year, containing multiple cats that can also begi
Please help with questions 9 and 10 !!!!!!!!!!