Answer is provided in the image attached.
Answer:




Step-by-step explanation:
The equation needs to be rearranged in terms of one trigonometric function:





The tangent function has positive values in the 1st and 3rd Quadrants. Then, the solutions are:




Consider this option:
1.the equation of the circle using its centre and point (0;-4) is:
x²+y²=4.
2. to substitute given point (23;2) into the equation of the circle:
23²+2²≠4
answer: this point does not belongs to the circle.