SiNx + cosx = √ 2m, find the value range of M

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• 1. If SiNx radical 3 times cosx = 2m-3, then the value range of M is the same
• 2. It is known that for any x belonging to R, y = (cosx) ^ 2-2msinx-2m-2 is always negative
• 3. A rectangular lawn, 50 meters long and 30 meters wide, with 12000 scale to draw this lawn plan
• 4. A rectangular lawn is 30m long and 15m wide, and the scale is 1:1000. How long and how wide is the plan of the lawn
• 5. Because a (a ^ 2 + 2A + 3) = a ^ 3 + 2A ^ 2 + 3a, factorization a ^ 3 + 2A ^ 2 + 3A = ()
• 6. A ^ 3 + 3A ^ 2-2a factorization help, thank you
• 7. Factorization of a ^ 3 + 3A ^ 2-2a-6
• 8. Factorization: (2a + 1) (3a-5) - 4 (A-2)
• 9. Factorization 4 (a ^ 2-2a + 6) (2a ^ 2-A + 4) - (3a ^ 2-3a + 10) ^ 2
• 10. Factorization 1 / 3A & sup3; + 2A & sup2; + 3A Factorization 1 / 3A & # 179; + 2A & # 178; + 3A
• 11. If SiNx * cosx = 1-2m, the range of M is?
• 12. SiNx > cosx, then the value range of X is 0
• 13. Cos x ≤ 1 / 4, find the value range of X
• 14. The value of M which makes cosx = 1-m meaningful is () A. M ≥ 2B. M ≤ 0C. 0 ≤ m ≤ 2D. M < - 1 or M > 1
• 15. What is the value range of SiNx + cosx?
• 16. Given the point m (1-A, 2A + 2), if the symmetric point of point m about X axis is in the third quadrant, then the value range of a is in the third quadrant______ ．
• 17. If the point m (1 + A, 2A + 2) is in the third quadrant, the value range of a is obtained It's a process
• 18. If the three sides of the triangle are 3, 1-2a and 8, then the value range of a is () A. - 6 ＜ a ＜ - 3B. - 5 ＜ a ＜ - 2C. 2 ＜ a ＜ 5D. A ＜ - 5 or a ＞ - 2
• 19. If the three sides of the triangle ABC are m2-1,2m, M2 + 1, the maximum angle is If the three sides of the triangle ABC are m square - 1,2m, m square + 1, then the maximum angle is ()
• 20. In △ ABC, the lengths of edges a, B and C are M2 + m + 1, 2m + 1 and M2-1 respectively. Find the maximum angle of the triangle