martsariayuindeli
martsariayuindeli
19-11-2016
Mathematics
contestada
SOLVE.. 2 cos 3x - 1 = 0
Respuesta :
Аноним
Аноним
19-11-2016
2cos 3x-1=0
2cos 3x=1
cos 3x=1/2
3x=cos⁻¹ 1/2 (cos⁻¹ (1/2)= π/3 + 2Kπ) and cos⁻¹(1/2)=5π/3+2kπ
1)
3x=π/3+2kπ
x=π/9+2/3(kπ) K∈Z; K=...-2,-1,0,1,2...
2)
3x=5π/3+2kπ
x=5π/9+(2/3)kπ
Answer:
x=π/9+2/3(kπ) U 5π/9+(2/3)kπ ; K∈Z
Answer Link
VER TODAS LAS RESPUESTAS ( 72+ )
ACCESS MORE
ACCESS MORE
ACCESS MORE
ACCESS MORE
Otras preguntas
Here is the attachment all I need is the in conclusion
What type of transformation takes the graph of f(x)=|x| to the graph of g(x)=|4+x|? vertical translation of 4 units up horizontal translation of 4 units left ho
As discussed in the video, air always moves from _____ atmospheric pressure regions to _____ atmospheric pressure regions.
The Sun’s light only strikes one side of Earth at a time. The dark side of Earth stays warm because the Sun’s heat A) is stored in the ice caps. B) is trapped
on saturday night hank had w basketball games he got to the gym 20 min before his first game each game lasted 1 1\2 hours there was a 30 mins break i. between t
A taxi starts from Monument Circle and travels 5 kilometers to the east for 5 minutes. Then it travels 10 kilometers to the south for 10 minutes. The taxi is mo
The theme of a story is seldom directly stated and must therefore be inferred by the reader from the elements of the story true or false
What were the powers of congress under the articles of confederation?
what is the central idea of this paragraph? A.Physicians could not do much for victims of the plague. B.Physicians were afraid to come near patients with symtom
Unlike plants, animals cannot make their own food. How do animals obtain the energy they need?
