Discussion
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- Question
If (x/y)a-4 = (y/x)2a-5 , then what is the relation between x and y?
Options- A. x > y
- B. Cannot be determined
- C. x < y
- D. x = y
- Correct Answer
- Cannot be determined
- 1. If the expression px3 ? 2x2 ? qx + 18 is completely divisible by (x2 ? 9) , then what is the ratio between p and q respectively?
Options- A. 1:9
- B. 1:3
- C. 3:1
- D. 9:1 Discuss
- 2. If the expression px3 ? qx2 ? 7x ? 6 is completely divisible by x2 ? x ? 6 , then what is the value of p and q respectively?
Options- A. 0, 1
- B. 1, 0
- C. 2, 1
- D. 1, 2 Discuss
- 3. How many times the keys of a typewriter have to be pressed in order to write numbers from 121 to 1346?
Options- A. 3675
- B. 4018
- C. 4021
- D. 4025 Discuss
- 4. What is the simplified value of cosec Acot A + tan A2 ?
Options- A. 2cos 2A
- B. 1 ? sin2 A
- C. sec2A
- D. secA tanA Discuss
- 5. What is the simplified value of (sec A + cos A)(sec A ? cos A)?
Options- A. 2 tan2A
- B. 2 sin2 A
- C. sin2 A tan2 A
- D. sin2A + tan2 A Discuss
- 6. If 3a ? (3/a) ? 3 = 0, then what is the value of a3 ? (1/a3) + 2 ?
Options- A. 0
- B. 2
- C. 4
- D. 6 Discuss
- 7. Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 4 cm, then what is the area (in cm2) of an equilateral triangle with side equal to the bigger diagonal of the rhombus?
Options- A. 6
- B. 9?3
- C. 12
- D. 12?3 Discuss
- 8. If 2 cos ? = 2 ? sin ?, then what is the value of cos ??
Options- A. 1 or 3/5
- B. 1 or ?1/2
- C. ?1 or?1/2
- D. ?1 or 3/5 Discuss
- 9. If x3+ 2x2? 5x + k is divisible by x + 1, then what is the value of k?
Options- A. -6
- B. -1
- C. 0
- D. 6 Discuss
- 10. If 3x + [1/(5x)] = 7, then what is the value of 5x/(15x2+ 15x + 1) ?
Options- A. 1/5
- B. 1/10
- C. 2/5
- D. 10 Discuss
Simplification problems
Search Results
Correct Answer: 1:9
Correct Answer: 1, 0
Correct Answer: 4025
Correct Answer: 1 ? sin2 A
Correct Answer: sin2A + tan2 A
Correct Answer: 6
Correct Answer: 12?3
Correct Answer: 1 or 3/5
Correct Answer: -6
Correct Answer: 1/10
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