Discussion
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- Question
If xy = 56 and x2+ y2= 113 , then what will be the value of (x + y)?
Options- A. 29
- B. 21
- C. 36
- D. 15
- Correct Answer
- 15
- 1. If cosec4A - cosec2A = x , then value of x is?
Options- A. tan4A + tan2A
- B. cot4A + cot2A
- C. cot4A - cot2A
- D. tan4A - tan2A Discuss
- 2. Factors of 48x3- 8x2- 93x- 45 are
Options- A. (4x + 3)(4x - 3)(3x - 5)
- B. (4x - 3)(4x - 3)(3x- 5)
- C. (4x + 3)(4x + 3)(3x - 5)
- D. (4x - 3)(4x + 3)(3x + 5) Discuss
- 3. If 2cosAsinB = x, then the value of x is?
Options- A. sin(A+B) + sin(A-B)
- B. cos(A++ cos(A-B)
- C. sin(A+B) - sin(A-B)
- D. cos(A-B) - cos(A+B) Discuss
- 4. If 2x - 2(3 + 4x) < -1 - 2x > -5/3 - x/3; then x can take which of the following values?
Options- A. 1
- B. 2
- C. -2
- D. -1 Discuss
- 5. If a - b = -7 and a2+ b2= 85 , then find ab.
Options- A. 18
- B. -30
- C. -44
- D. 60 Discuss
- 6. A and B together have Rs. 6300. If 5/19 of A's amount is equal to 2/5 of B's amount. The amount of 'B' is
Options- A. Rs. 2500
- B. Rs. 3800
- C. Rs.2300
- D. Rs. 4000 Discuss
- 7. If 5x + 1/x = 10, then x2 + 125x2 is equal to
Options- A. 215
- B. 335
- C. 315
- D. 235 Discuss
- 8. If sinA + sin2A = 1 then what is the value of cos2A + cos4A ?
Options- A. 1
- B. 2
- C. 1/2
- D. 1/4 Discuss
- 9. The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to
Options- A. 335
- B. 325
- C. 315
- D. 3 Discuss
- 10. If a+b=3 then the value of a3+b3+9ab-27 is
Options- A. 24
- B. 25
- C. 0
- D. 27 Discuss
Simplification problems
Search Results
Correct Answer: cot4A + cot2A
Correct Answer: (4x + 3)(4x + 3)(3x - 5)
Correct Answer: sin(A+- sin(A-B)
Correct Answer: -1
Correct Answer: 18
Correct Answer: Rs. 2500
Correct Answer: 335
Correct Answer: 1
Correct Answer: 335
Correct Answer: 0
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