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

When encoding a message during cross-cultural communication, it is most effective for senders to ________?
The peripheral nervous system consists of all the nervous tissue external to the cns true or false
Choose the verb that's spelled correctly in the preterit tense. vivo viví vivio
The active ingredient in some oral anesthetics used in sore throat sprays. what is the molar mass of phenol?
How does the method for solving equations with fractional or decimal coefficients and constants compare with the method for solving equations with integer coeff
Help with number 11 plz? And tysm to the people who do help me cause I have been asking for hours for help
Select the word that best completes the sentence. Misusing PHI can result in criminal penalties of up to $250,000, imprisonment of up to ____ years, or both.
what is the big idea of socialism
Rank the following in order of increased size? A. Proton B. Nucleus C. Electron D. Atom
What are 6 centimeters equal to? A. 600 meters B. 1/6 of a millimeter C. 60 millimeters D. 600 millimeters