Factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers.
Your calculator says error because you cant have a square root of a negative number because there is no solution to that maybe recheck your equation and try again
Answer:
X=3
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
The answer is 4,239,000 but I don’t know what you mean by decimal form.
