tuandonlam tuandonlam
  • 01-06-2018
  • Mathematics
contestada

how can i solve this equation?
Sin
[tex] sin^{3}x + 3sin {}^{2} x + 2 \sin x = 0[/tex]
Please help me if you can

how can i solve this equationSintex sin3x 3sin 2 x 2 sin x 0texPlease help me if you can class=

Respuesta :

NabasishGogoi
NabasishGogoi NabasishGogoi
  • 01-06-2018
Factorizing sin2x+3sinx+2=0

sin^2 x+2sinx+sinx+2=0

or sinx(sinx+2)+1(sinx+2)=0

or (sinx+1)(sinx+2)=0

Now as sinx+2≠0, we have sinx+1=0

or sinx= −1 =sin(3π/2)

Hence, x=2nπ+3π/2
Answer Link

Otras preguntas

Round 8.61 to the nearest tenth.
Which of the following cell organelles surrounds the nuclear membrane? A; rough endoplasmic reticulum B; smooth endoplasmic reticulum C; the Golgi apparatus
Sumerian cities were characterized by A. canals, protective walls, and homes made of wood. B. some narrow, unpaved streets, protective walls, and homes made of
which continent includes 45 degrees north latitude and 115 degrees East longitude
FACTORISE THESE REALLY STUCK 2X^2+5X+2 2W^2+5W-3 3A^2+14A+8 30Z^2-23z+2 8Y^2+23Y-3 6P^2-PWQ-Q^2
Multicellular plants and animals have organs to perform specific functions. What do eukaryotic cells have to perform specific functions? A.ribosomes B.organelle
What is the sum of 3/2x and 7/4x
What is the term for the process of sensory organs detecting external stimuli and transmitting these to the brain? a. Sensation b. Perception c. Attention d. Co
What is letter m? M/9 -17=21
What happens to Melanthius in chapter 17 in the Odyssey?