Discussion
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- Question
If x = 222, y = 223, z = 225 then the value of x3 + y3 + z3 - 3xyz is
Options- A. 4590
- B. 4690
- C. 4950
- D. 4960
- Correct Answer
- 4690
- 1. If C+1C = 3 , then what is the value of C3+1C3 = ?
Options- A. 0
- B. 3?3
- C. 1/?3
- D. 6?3 Discuss
- 2. If 4x + 1x = 5, (x?0), then the value of 5x4x2+10x+1 is
Options- A. 1/2
- B. 1/3
- C. 2/3
- D. 3 Discuss
- 3. Value of (cos 53° - sin 37°) is
Options- A. 2 sin 37 ?
- B. 2 cos 53 ?
- C. 0
- D. 1 Discuss
- 4. If sec (4x - 50°) = cosec(50° - x), Then the value of x is
Options- A. 45°
- B. 90°
- C. 30°
- D. 60° Discuss
- 5. If x = 93 , y = 93 , z = 94 then the value of x2 - y2 + 10xz + 10yz is
Options- A. 104784
- B. 147840
- C. 174840
- D. 184740 Discuss
- 6. If x = 313- 3-13 , then 3x2 + 9x is equal to
Options- A. 5
- B. 6
- C. 7
- D. 8 Discuss
- 7. If cosec ? + sin? = 5/2 then the value of cosec? - sin? is
Options- A. -3/2
- B. 3/2
- C. ??3/2
- D. ?3/2 Discuss
- 8. If ab+ba = -1 , then the value of a2b-b2a is
Options- A. 1
- B. -1
- C. 0
- D. 2 Discuss
- 9. If sec? = cosecq with 0° < ? , q < 90°, then the value of sin (? + q) is
Options- A. 1
- B. 0
- C. 2
- D. 4 Discuss
- 10. If x+19x=4 , then 9x2+19x2 is
Options- A. 140
- B. 142
- C. 144
- D. 146 Discuss
Simplification problems
Search Results
Correct Answer: 0
Correct Answer: 1/3
Correct Answer: 0
Correct Answer: 30°
Correct Answer: 174840
Correct Answer: 8
Correct Answer: 3/2
Correct Answer: 0
Correct Answer: 1
Correct Answer: 142
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