Discussion
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- Question
Find k, if the line 2x- 3y = 11 is perpendicular to the line 3x + ky = -4?
Options- A. -2
- B. 1
- C. -1
- D. 2
- Correct Answer
- 2
- 1. Coefficient of x2 in 6x3 + 4x2 + 2x + 3 is
Options- A. 4
- B. 6
- C. 3
- D. 2 Discuss
- 2. (secA - tanA)/(cosecA + cotA) is equal to
Options- A. (secA - cot/ (cosecA + tanA)
- B. (secA - cosA) / (cosecA + sinA)
- C. (cosecA - cotA) / (secA + tanA)
- D. (secA + cosA) / (cosecA - sinA) Discuss
- 3. If 2x+ 4(x - 3) < -2 - x < 2x - 1, then find the value of x.
Options- A. -1
- B. 1
- C. 2
- D. -2 Discuss
- 4. If xy = -30 and x2 + y2 = 61 , then find the value of (x + y).
Options- A. 2
- B. 3
- C. 1
- D. 4 Discuss
- 5. If 3x - 10 = -(2x + 5), then the numerical value of (x - 4)3 is
Options- A. 27
- B. 125
- C. -125
- D. -27 Discuss
- 6. On dividing 8a2b2c2 by 4a2 , we get
Options- A. 2b2
- B. 2c2
- C. 2b2c2
- D. 2 Discuss
- 7. The point P (a,b) is first reflected in origin to P1 and P1 is reflected in Yaxis to (4,3). The co-ordinates of point P are
Options- A. (4,3)
- B. (-4,3)
- C. (-3,4)
- D. (3,-4) Discuss
- 8. ?(1 + tan2A)/tanA is equal to
Options- A. secA
- B. sinA
- C. cosecA
- D. cosA Discuss
- 9. What is the value of sec 4?/3?
Options- A. 2
- B. -2
- C. 2/?3
- D. -2/?3 Discuss
- 10. If 2x + 6y = 3xy and 10x - 3y = 4xy, find x, y.
Options- A. 3, 2
- B. 2, 3
- C. 4, 6
- D. 6, 4 Discuss
Simplification problems
Search Results
Correct Answer: 4
Correct Answer: (cosecA - cot/ (secA + tanA)
Correct Answer: 2
Correct Answer: 1
Correct Answer: -27
Correct Answer: 2b2c2
Correct Answer: (4,3)
Correct Answer: cosecA
Correct Answer: -2
Correct Answer: 3, 2
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