Discussion
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- Question
What is the simplified value of (sin A ? cosec A)(sec A ? cos A) (tan A + cot A)?
Options- A. 1
- B. -1
- C. 0
- D. 2
- Correct Answer
- -1
- 1. What is the simplified value of sec4? ? sec2? tan2? ?
Options- A. cosec2?
- B. Cot2?
- C. sec2 ?
- D. sec? tan ? Discuss
- 2. If x2+ x = 19 , then what is the value of (x + 5)2+ [1/(x + 5)2] ?
Options- A. 77
- B. 79
- C. 81
- D. 83 Discuss
- 3. If x + [1/(4x)] = 5/2, then what is the value of (64x6+ 1)/8x3 ?
Options- A. 110
- B. 115
- C. 125
- D. 140 Discuss
- 4. If 3x + [1/(5x)] = 7, then what is the value of 5x/(15x2+ 15x + 1) ?
Options- A. 1/5
- B. 1/10
- C. 2/5
- D. 10 Discuss
- 5. If x3+ 2x2? 5x + k is divisible by x + 1, then what is the value of k?
Options- A. -6
- B. -1
- C. 0
- D. 6 Discuss
- 6. If (1/cos ?) ? (1/cot ?) = 1/P, then what is the value of cos ??
Options- A. (P + 1)/(P ? 1)
- B. (P2+ 1)/2P
- C. 2(P2+ 1)/P
- D. 2P/(P2+ 1) Discuss
- 7. What is the simplified value of cosec6A ? cot6A ? 3 cosec2A cot2A ?
Options- A. -2
- B. -1
- C. 0
- D. 1 Discuss
- 8. If tan A = 1/2 and tan B = 1/3, then what is the value of tan (2A + B)?
Options- A. 1
- B. 3
- C. 5
- D. 9 Discuss
- 9. If a2+b2+c2=83 and a+b+c=15 then the value of ab+bc+ca is
Options- A. 69
- B. 70
- C. 71
- D. 72 Discuss
- 10. If 3+12=x+3y, then the x+y is
Options- A. 2
- B. 4
- C. 6
- D. 8 Discuss
Simplification problems
Search Results
Correct Answer: sec2 ?
Correct Answer: 79
Correct Answer: 110
Correct Answer: 1/10
Correct Answer: -6
Correct Answer: 2P/(P2+ 1)
Correct Answer: 1
Correct Answer: 3
Correct Answer: 71
Correct Answer: 6
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