Discussion
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- Question
If X + Y + Z = 9 then the value of (X - 4)3 + (Y - 2)3 + (Z - 3)3 - 3 (X - 4) (Y - Z) (Z - 3) is
Options- A. 6
- B. 9
- C. 0
- D. 1
- Correct Answer
- 0
- 1. Given a - b = 2, a3 - b3=26 then (a + b)2 is
Options- A. 9
- B. 4
- C. 16
- D. 12 Discuss
- 2. If sec2?+tan2?=3, then sec4?-tan4? =
Options- A. 1/?3
- B. 1
- C. ?3
- D. 0 Discuss
- 3. The value of ds+t÷ds÷dt
Options- A. 0
- B. d
- C. 1
- D. ds+t Discuss
- 4. If ab = 21 and a+b2a-b2 = 254 ,then the value of a2+b2+3ab
Options- A. 115
- B. 121
- C. 125
- D. 127 Discuss
- 5. A sphere of radius 5 cm is melted to form a cone with base of same radius. The height (in cm) of the cone is
Options- A. 5
- B. 10
- C. 20
- D. 22 Discuss
- 6. If ?sin?= 1, ?cos?= 1, then (3tan 23?+1) is
Options- A. 1
- B. ?3
- C. 2
- D. 1/?3 Discuss
- 7. 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
- 8. When 2x + 2x = 3, then x3 + 1x + 2 value is
Options- A. 2/7
- B. 7/8
- C. 7/2
- D. 8/7 Discuss
- 9. 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
- 10. If x = x2+11 2 - 2, then x3 + 5x2 + 12x is
Options- A. 0
- B. 3
- C. 7
- D. 11 Discuss
Simplification problems
Search Results
Correct Answer: 16
Correct Answer: ?3
Correct Answer: 1
Correct Answer: 121
Correct Answer: 20
Correct Answer: 2
Correct Answer: 2
Correct Answer: 7/8
Correct Answer: 16
Correct Answer: 3
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