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

What is an antonym for mercy? 1.sorrow 2.loneliness 3. cruelty 4.injustice
Which of the following is a plant structure that aids in water retention? A) Cellulose B) Cuticle C) Vascular tissue D) Cell wall
Stephen hit a baseball 10 out of 30 times. What is the experimental probability that he will hit the ball the next Try?
IM GIVING 20 POINTS. help me please. it would be very helpful
a student constructed a simple electric circuit where two light bulbs were connected in parallel. The circuit power source was a 6.0-V cell. One of the light bu
yeah um could someone please help me
The reason a character thinks, feels, or acts a specific way is called Othematic development. Oplot structure. O character motivation. O prior knowledge.
Juanita typed 78 words in 1 minute. What is a reasonable value for the amount of words she could type in 3 minutes? A. 240 words B. 70 words C. 80 words D. 160
Use the formula d = rt. Find t for r = 49.5 m/h and d = 504.9 m. 24,993 h 10.2 h 0.1 h 455.4 h
You answer everyone's question but mine, thanks.