Hi,

2*sin^2(x)+3*sin(x)+1=0

(2sin(x)+1)(sin(x) + 1) = 0

(2sin(x)+1) = 0 , sin(x) = -1/2

(sin(x) + 1) = 0, sin(x) = -1 

See(cos(x), sin(x)) reference below:

 

RELATED QUESTIONS

sin^2(x)+sin(x)=0 (answered by josgarithmetic)

Solve 
6 sin^3 x - 3 sin^2 x - 3 sin x =... (answered by lwsshak3)

solve: 3 sin x - 2 = 7 sin x... (answered by RAY100)

0 2pi: sin^2(x)-sq root of 3... (answered by lwsshak3)

kindly help me with these equations...thank you....

(3 cos x + 7)(-2 sin x - 1) = 0... (answered by richwmiller)

find sin(x+y) if sin x=2/3 and sin y=... (answered by jsmallt9)

Sin x = 1/3 ,0 < x < pi/2 
Cos y = 2/5 ,0 < x < pi/2 
Find sin (x+y)  (answered by ikleyn)

Solve... (answered by jim_thompson5910)

Solve sin^2 x + sin x + 4 = 0 for x.  (answered by Shin123,math_tutor2020)