We know that set a = {x 3} and set B = {x 4x + M
B is X
Given the set a = {x | X & sup2; + (P + 2) x = 1 = 0}, if a ∩ {x | x > 0} = & # 8709;, find the value range of P
Intersection is an empty set
There is no positive root
If the equation has no solution
The discriminant is less than 0
p²+4p+4-4
RELATED INFORMATIONS
- 1. Given the set a = {x | - 5 ≤ x ≤ 3}, B = {y | = a-2x-x & sup2;}, where a ∈ R, if a is contained in B, find the range value of real number a RT
- 2. If the distance from the center O to the chord AB is a, then the diameter of O is a
- 3. A chord is divided into two parts: 1:4. Find the degree of the circumference angle of the chord
- 4. If a chord of a circle is known to divide the circle into two parts of 1:3, then the degree of the angle of the circle to which the chord is directed is______ .
- 5. Why are the same chords complementary to each other? How to prove the complementarity or equality of the circle angles of the same chord?
- 6. P is a point out of plane a. the angle difference between PA, Pb and plane a is π / 4. Their projective lengths in plane are 2 and 12 respectively. The distance from P to plane is
- 7. As shown in the figure, PA ⊸ o is in the plane, AB is the diameter of ⊙ o, C is the point on ⊙ o, and E.F is the point a in the plane PB.PC The following conclusions are given: 1, AF ⊥ Pb; 2, EF ⊥ Pb; 3, AF ⊥ BC; 4, AE ⊥ plane PBC, where the sequence number of the correct proposition is
- 8. If PA = 8, Pb = 5 and OA: OB = 4: √ 3, then the distance from point P to plane a is equal to
- 9. PA, Pb and PC are three rays from P, and the angle between each two rays is 60 degrees. So what is the cosine of the angle between PC and PAB? Which is the angle between PC and PAB and why A proof of the angle between line PC and plane PAB
- 10. We know that the line AB = 8, and there is a point P on the plane. (1) if AP = 5, what is Pb equal to, P is on the line AB?
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- 17. If point P is a point in the cube abcd-a'b'c'd 'with edge length 1 and AP = 3 / 4AB + 1 / 2ad + 2 / 3AA', then the distance from point P to edge length AB is_________
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