Shef1fineNadiannah Shef1fineNadiannah

24-11-2016
Mathematics

contestada

Find all values of x in the interval [0, 2π] that satisfy the equation.
3 sin(2x) = 3 cos(x)

Respuesta :

HomertheGenius HomertheGenius

26-11-2016

3 sin ( 2 x ) = 3 cos x
3 · 2 sin x cos x - 3 cos x = 0
6 sin x cos x - 3 cos x = 0 /: 3
2 sin x cos x - cos x = 0
cos x ( 2 sin x - 1 )
cos x = 0,
x 1 = π/2, x 2 = 3π/2;
2 sin x - 1 = 0
2 sin x = 1
sin x = 1/2
x 3 = π/6, x 4 = 5π/6.

Answer Link

Otras preguntas

find the value of given expression[tex] \sqrt{255 - 30} [/tex]

What is it help me plz

encouraging quote by me: dont say we need more people like (PERSON) strive to be like them dont wait for the change be the change

transcribe the DNA strand below into RNA

A car wheel turns through 12pi in 10.7s calculate the angular speed of the wheel

2. Which story would be best shared using a podcast? A story about the newest photographs of Mars. A story about how to draw animals. A story about the meaning

A group of students must collect at least $120 to organize a science fair. They have already collected $40. Which graph best represents the possible amounts of

please help and thank you for your time

I need help what is 1+1 I've been on this for TWO hours...

I need help! Create a myth this is due tomorrow