Discussion
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- Question
AB is the diameter of a circle with center O and P be a point on its circumference. If ? POA = 120°, then the value of ? PBO is
Options- A. 30°
- B. 60°
- C. 50°
- D. 40°
- Correct Answer
- 60°
- 1. If x = x2+11 2 - 2, then x3 + 5x2 + 12x is
Options- A. 0
- B. 3
- C. 7
- D. 11 Discuss
- 2. If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is
Options- A. 16
- B. 20
- C. 10
- D. 5 Discuss
- 3. When 2x + 2x = 3, then x3 + 1x + 2 value is
Options- A. 2/7
- B. 7/8
- C. 7/2
- D. 8/7 Discuss
- 4. If (x - 2) (x - p) = x2 - ax + 6 , then the value of (a - p) is
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 5. If ?sin?= 1, ?cos?= 1, then (3tan 23?+1) is
Options- A. 1
- B. ?3
- C. 2
- D. 1/?3 Discuss
- 6. If P2+1P2 = 47 , then the value of P + 1P is
Options- A. 5
- B. 6
- C. 7
- D. 8 Discuss
- 7. The least value of tan2x + cot2x is
Options- A. 3
- B. 2
- C. 0
- D. 1 Discuss
- 8. If x + ?5 = 5 + ?y, and x, y are positive integers, then the value of x+yx + y
Options- A. 1
- B. 2
- C. ?5
- D. 5 Discuss
- 9. If cos 21° = x/y, then cosec 21° - cos 69° is equal to
Options- A. x2yy2-x2
- B. y2xy2-x2
- C. y2xx2-y2
- D. x2yx2-y2 Discuss
- 10. If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0 , then value of (x + y - z) is
Options- A. 16
- B. -1
- C. -2
- D. 12 Discuss
Simplification problems
Search Results
Correct Answer: 3
Correct Answer: 16
Correct Answer: 7/8
Correct Answer: 2
Correct Answer: 2
Correct Answer: 7
Correct Answer: 2
Correct Answer: 1
Correct Answer: x2yy2-x2
Correct Answer: -2
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