Discussion
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- Question
If cos?/4c - tan?/4c = x, then x is
Options- A. (?3+4)/2?3
- B. (2?2-1)/2
- C. (1-?2)/?2
- D. 5/?3
- Correct Answer
- (1-?2)/?2
- 1. An angle is thrice its complementary angle. What is the measure of the angle?
Options- A. 22.5°
- B. 135°
- C. 45°
- D. 67.5° Discuss
- 2. If (1 - sinA)/(1 + sinA) = x, then x is
Options- A. (cosecA - cotA)2
- B. secA - tanA
- C. (secA - tanA)2
- D. cosecA - cotA Discuss
- 3. The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is
Options- A. 6x2y - 8xy2 + 15y2z
- B. 6x2y + 8xy2 - 15y2z
- C. 6x2y + 8xy2 - 15y2z - 20xyz
- D. 6x2y - 8xy2 + 15y2z + 20xyz Discuss
- 4. If (1 + secA)/tanA = x, then x is
Options- A. cot(A/2)
- B. tan(A/2)
- C. cosec(A/2)
- D. sec(A/2) Discuss
- 5. If (4x - 5) = (3x - 1), then the numerical value of (x + 4)2
Options- A. 16
- B. 64
- C. 32
- D. 8 Discuss
- 6. Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)
Options- A. b5x4a5z5
- B. b5x4a5z7
- C. b5x4a4z7
- D. b4x4a5z7 Discuss
- 7. If tanA = x, then x is
Options- A. ?(cosec2A + 1)
- B. ?(sec2A + 1)
- C. ?(cosec2A - 1)
- D. ?(sec2A - 1) Discuss
- 8. The slopes of two lines are 1 and ?3. What is the angle between these two lines?
Options- A. 15°
- B. 30°
- C. 45°
- D. 60° Discuss
- 9. If 4x -7 < x - 2 and 5x +2/3 ? 3x + 1; then x can take which of the following values?
Options- A. 2
- B. -1
- C. -2
- D. 1 Discuss
- 10. The solution set of 4x - 3y = 47 and 3x + y = 32 is
Options- A. {(15, 3)}
- B. {(4, 12)}
- C. {(11, -1)}
- D. {(12, 3)} Discuss
Simplification problems
Search Results
Correct Answer: 67.5°
Correct Answer: (secA - tanA)2
Correct Answer: 6x2y + 8xy2 - 15y2z
Correct Answer: cot(A/2)
Correct Answer: 64
Correct Answer: b5x4a5z7
Correct Answer: ?(sec2A - 1)
Correct Answer: 15°
Correct Answer: 1
Correct Answer: {(11, -1)}
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