Discussion
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- Question
If cos 2?/3c = x, then the value of x is
Options- A. -1/2
- B. 1/2
- C. -?3/2
- D. ?3/2
- Correct Answer
- -1/2
- 1. If (1 + sinA)/cosA + cosA/(1 + sinA) = x, then the value of x is
Options- A. 2cosecA
- B. 2cosec2A
- C. 2sec2A
- D. 2secA Discuss
- 2. The sum of 4x + 3y 7z, x y z and 2x 3y + 4z is
Options- A. 3x - y - 4z
- B. 3x - y + 4z
- C. 3x + y - 4z
- D. 3x + y + 4z Discuss
- 3. What is the value of ?[(1 + sinA)/(1 - sinA)]?
Options- A. secA - tanA
- B. cosecA + tanA
- C. secA + tanA
- D. cosecA - tanA Discuss
- 4. What is the equation of the line passing through the point (0,4) and making an angle of 45° with the positive xaxis?
Options- A. x + y = 4
- B. x - y = - 4
- C. x + y = -4
- D. x - y = 4 Discuss
- 5. If 1/?(1+tan2A) = x , then value of x is
Options- A. cosA
- B. sinA
- C. cosecA
- D. secA Discuss
- 6. If cot(A/2) = x, then the value of x is
Options- A. cosecA - cotA
- B. cosecA + cotA
- C. secA + cotA
- D. secA - cotA Discuss
- 7. The points A(x,2), B(2,1) and C(6,3) are collinear. Find x?
Options- A. 4
- B. -2
- C. -4
- D. 2 Discuss
- 8. Given: x - 5 ? 2x - 3 and 2x - 1/2 ? 5x + 2; then x can take which of the following values?
Options- A. -1
- B. 1
- C. 3
- D. -3 Discuss
- 9. Find the value of 199992 x 200008 = ?
Options- A. 39999799936
- B. 39999999836
- C. 39999999936
- D. 39999999926 Discuss
- 10. Which of the following quadratic equations has real roots?
Options- A. 4x2 - 9x + 6 = 0
- B. 3x2 - 2x + 6 = 0
- C. 2x2 - 7x + 6 = 0
- D. x2 - 2x + 2 = 0 Discuss
Simplification problems
Search Results
Correct Answer: 2secA
Correct Answer: 3x - y - 4z
Correct Answer: secA + tanA
Correct Answer: x + y = -4
Correct Answer: cosA
Correct Answer: cosecA + cotA
Correct Answer: -4
Correct Answer: -1
Correct Answer: 39999999936
Correct Answer: 2x2 - 7x + 6 = 0
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