It is known that a is the second quadrant angle and | a + 2|

RELATED INFORMATIONS

• 1. It is known that α is the second quadrant angle, and | α + 2 | ≤ 4, then the value range of α is______ ．
• 2. Given that point a (2-A, a + 1) is in the fourth quadrant, the value range of a is () A. a＜1B. a＜-1C. -1＜a＜2D. a＞2
• 3. If the point P (A-3, a + 1) is in the second quadrant, then the value range of a is:
• 4. If point P (3-A, 2) is in the second quadrant, then the value range of a is
• 5. If point P (A-1, the square of 1 / A-4) is in the fourth quadrant, then the value range of a is?
• 6. If point P (a, A-3) is in the fourth quadrant, then the value range of a is () A. -3＜a＜0B. 0＜a＜3C. a＞3D. a＜0
• 7. In the plane rectangular coordinate system, if the point P (m, m-2) is in the fourth quadrant, then the value range of M is () A. m＞2B. m＜0C. 0＜m＜2D. 0≤m≤2
• 8. If the point P (5, y) is in the fourth quadrant, then the value range of Y is () A. y＜0B. y＞0C. y≤0D. y≥0
• 9. In the plane rectangular coordinate system, if P (2x-6, X-5) is in the fourth quadrant, then the value range of X is () A. 3＜x＜5B. -3＜x＜5C. -5＜x＜3D. -5＜x＜-3
• 10. Given that the point m (- 5 + m, - 3) is in the third quadrant, the value range of M is
• 11. If point a (M + 4,1-2m) is in the fourth quadrant, find the value range of M
• 12. If point P (2m + 1, 3M − 12) is in the fourth quadrant, then the value range of M is______ ．
• 13. Let Sn = 1 / (n + 1) + 1 / (n + 2) + 1 / (n + 3). 1 / 2n, find the value range of Sn That n ∈ n, Sn should be f (n)
• 14. Sn = 1 + 1 / 2 + 1 / 3 +. + 1 / N, f (n) = s2n + 1-sn + 1, finding f (n) > log2 (m-1) - log (m-1) 2 constant holds, the value range of M
• 15. Sn = 1 + 1 / 2 + 1 / 3 +. + 1 / N, f (n) = s2n + 1-sn + 1, f (n) > m is constant, the value range of M is constant
• 16. If a and B satisfy (3 radical a) + (5|b |) = 7, find the value range of S = (2 radical a) - (3|b |) There should be a reason
• 17. If a and B satisfy 3 √ a + 5 √ B = 7, what is the value range of S = 2 √ A-3 √ B?
• 18. If a and B satisfy 3 √ a + 5 | B | = 7, what is the value range of S = 2 √ A-3 | B |? In a hurry···
• 19. Given the increasing function of F (x) in the domain of definition [- 2,1], f (t-1) < f (1-3T) can find the range of T
• 20. If y = - 0.5x + 3, then - 2