QUESTION 11 On the plane \(xy\), there are two straight lines (1) and (2), two parabolas (3) and (4)...

QUESTION 01 The range of \(x\) that satisfies the following inequality \(| x + 3 | < 4x\) is...

QUESTION 02 The number of solutions \((x,y,z)\) of the equation \(x + y + z = 4\), where \(x\),...

QUESTION 03 On the plane \(xy\), there are two points: \(O(0,0), A(6,8)\). The equation of the circle with a...

QUESTION 04 \(\log_4 9 = \log_2 \: \bbox{(1)}\), \(\log_9 4 = \log_3 \: \bbox[6px, border:...

QUESTION 05 \(\sqrt {25} \times \sqrt {25} : \sqrt {5} = \bbox{\sqrt{(1)}}\) 🔍...

QUESTION 06 Let the sequence \(a_n\) (\(n = 1, 2, 3, \dots\)) be a geometric progression satisfying \(a_1 +...

QUESTION 07 Let \(\vec a = (1,0,-1), \vec b = (-2,2,1), \vec c = (x,y,z) \quad x > 0\)...

QUESTION 08 Let M denote the midpoint of side BC of a triangle ABC. When \(BC = 8, CA...

QUESTION 09 The equation of the tangent to the curve \(f(x) = -x^2 + x + 2\) at the...