1.
2.
3.
4.
1. AP
2. GP
3. HP
4. AGP
GP
1. straight line
2. plane
3. plane passing through the origin
4. sphere
plane
1. 2
2. 4
3. 8
4. 16
8
1. a2 = b2+c2
2. b2 = c2+a2
3. c2 = a2+b2
4. 2a2-b2 = c2
a<sup>2</sup> = b<sup>2</sup>+c<sup>2</sup>
1. (-6, 9)
2. (9, -6)
3. (-9, -6)
4. (-6, -9)
(9, -6)
1. 7/16
2. 5/4
3. √7/4
4. √7/2
√7/4
1. 2
2. 3
3. 4
4. 8
4
1. a cricle
2. a parabola
3. an ellipse
4. a hyperbola
a parabola
1. a straight line
2. a parabola
3. a circle
4. an ellipse
a parabola