1. 16x2 - 12x + 1 = 0
2. 16x2 + 12x + 1 = 0
3. 16x2 - 12x - 1 = 0
4. 16x2 + 10x + 1 = 0
16x<sup>2</sup> - 12x + 1 = 0
1. [-2, 3]
2. [-2, 1]
3. [2, 4]
4. [1, 5]
[2, 4]
1. x < y < z
2. y < z < x
3. z < x < y
4. x < z < y
x < y < z
1. log( 2 - √3)
2. log ( √3 -2)
3. log( 2 +√3)
4. log( 2 + √5)
log( 2 +√3)
1. b2 = ac
2. 2b = a + c
3. 2ac = b(a + c)
4. a + b = c
2b = a + c
1. 1 : sin 100
2. 1 : 2sin 100
3. 1 : cos 100
4. 1 : 2cos 100
1 : 2cos 100
1. 3
2. 1
3. 4
4. 2
2
1. 120
2. 60√3
3. 120√3
4. 60
60√3
1. π/4
2. π/2
3. π/6
4. π/3
π/3
1.
2.
3.
4. 0