1. 1
2. 2
3. 3
4. 4
2
1. π/2
2. π/4
3. 5π/12
4. π/3
π/3
1. 12
2. 13
3. 14
4. 15
13
1. (sin 3α)/(sin 2α)
2. 1+2 cos2α
3. 2 cos2α
4. (sin 2α)/(sin α)
2 cos2α
1. -x+2y+8z-9=0
2. x+2y+2z-9=0
3. x+y+z-5=0
4. x+2y-3z+1=0
x+2y+2z-9=0
1. π/2
2. π/4
3. π/6
4. π/3
π/2
1. x-2 + y-2 + z-2 = h-2
2. x-2 + y-2 + z-2 = 4h-2
3. x-2 + y-2 +z-2 = 16h-2
4. x-2+y-2+z-2=9h-2
x-2+y-2+z-2=9h-2
1. y+1 = 0
2. y+2 = 0
3. y+3 = 0
4. y-2 = 0
y+2 = 0
1. (1, -1), (-3, -40)
2. (1, -1), (-1/5, 8/5)
3. (-1, 1), (1/5, 8/5)
4. (-1/5, -8/5)
(-1, 1), (1/5, 8/5)
1. 8y-x+1 = 0
2. 8x-y+1 = 0
3. 8x-8y+1 = 0
4. y-8x+1 = 0
8x-y+1 = 0