[38th Bcs preliminary : 2017]
1. 1 ≤ x ≤ 2
2. 1
3. x ≤ 1 × ≥ 2
4. -1 < x < 2
1. 12
2. 4
3. 10
4. 2
1. 2400000tk
2. 20000000tk
3. 1600000tk
4. 1200000tk
1. 30°
2. 60°
3. 45°
4. 25°
উত্তরঃ 30°
1. 32
2. 64
3. 128
4. 256
উত্তরঃ 64