What is the maximum value of F (x) = sinx-2 / cosx + 1? 2, find the solution set of inequality | root x-1-2 | 1 3. Given the equation of circle (x-1) ^ 2 + (Y-1) ^ 2 = 8 and the straight line is x + y = 0, how many points on the circle whose distance to the straight line is equal to the root 2? For the first question, with options, a, 3 / 4, B, - 4 / 5, C-3 / 4, D, 4 / 5

What is the maximum value of F (x) = sinx-2 / cosx + 1? 2, find the solution set of inequality | root x-1-2 | 1 3. Given the equation of circle (x-1) ^ 2 + (Y-1) ^ 2 = 8 and the straight line is x + y = 0, how many points on the circle whose distance to the straight line is equal to the root 2? For the first question, with options, a, 3 / 4, B, - 4 / 5, C-3 / 4, D, 4 / 5

F (x) has no maximum because - 2 / cosx tends to infinity