1. 2
2. 0
3. (1/4. -1/8)
4. 1/4
0
1. 4
2. 8
3. 2√2
4. 2
2√2
1. y2/(x12+y12)
2. x2/(x12+y12)
3. a2/(x12+y12)
4. a/(x12-y12)
a2/(x12+y12)
1. x-2-y-2=a-4
2. x-2-y-2=a-2
3. x-2+y-2=a-2
4. x2+y2=a2
x-2+y-2=a-2
1. (g2+f2-c) / 2[√(g2+f2)]
2. (g2+f2-c) / 2[g2+f2]
3. (g2+f2-c) / [√(g2+f2)]
4. (g2+f2+c) / 2[√(g2+f2)]
(g2+f2-c) / 2[√(g2+f2)]
1. (2,-1)
2. (0,0)
3. (1,1)
4. (-1,-1)
(0,0)
1. x2+y2+2x-3y-6=0
2. x2+y2-2x-3y-12=0
3. x2+y2-2x+3y-6=0
4. x2+y2+2x+3y-24=0
x2+y2-2x+3y-6=0
1. √(a2-k2)
2. √(a2+k2)
3. √(k2-a2)
4. a2-k2
√(a2-k2)
1. 3x+y=4
2. 3x+y=2
3. 3x+y=0
4. x+3y+2=0
3x+y=2
1. (x-2)sinθ-(y-3)cosθ=2√2
2. (x-2)sinθ+(y-3)cosθ=2√2
3. (x-2)sinθ-(y-3)cosθ=0
4. (x-2)sinθ+(y-3)cosθ=0
(x-2)sinθ-(y-3)cosθ=0