Given the inequality:
sin(x)−10>0To solve this inequality, we must first solve the corresponding equation:
sin(x)−10=0Solve:
Given the equation
sin(x)−10=0- this is the simplest trigonometric equation
Move -10 to right part of the equation
with the change of sign in -10
We get:
sin(x)=10As right part of the equation
modulo =
True
but sin
can no be more than 1 or less than -1
so the solution of the equation d'not exist.
x1=π−asin(10)x2=asin(10)Exclude the complex solutions:
This equation has no roots,
this inequality is executed for any x value or has no solutions
check it
subtitute random point x, for example
x0 = 0
−10+sin(0)>0-10 > 0
so the inequality has no solutions