Discussion
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- Question
If 9x - [5(2x + 1)/2] = 9/2, then the value of x is?
Options- A. 7/4
- B. -7/4
- C. 4/7
- D. -4/7
- Correct Answer
- 7/4
- 1. 2 sec2A is equal to
Options- A. (1 - tanA)2 - (1 + tanA)2
- B. ?[(1 - tanA)2 + (1 + tanA)2 ]
- C. ?[(1 - tanA)2 - (1 + tanA)2]
- D. (1 - tanA)2 + (1 + tanA)2 Discuss
- 2. cos3A is equal to
Options- A. cos3A - 3sin2cosA
- B. cos3A + 4sin2cosA
- C. cos3A + 3sin2cosA
- D. cos3A - 4sin2cosA Discuss
- 3. What is the value of sin 5?/3?
Options- A. ?3/2
- B. 2/?3
- C. 1/?3
- D. -2/?3 Discuss
- 4. If 5x + 5 > 2 + 2x and 5x + 3 ? 4x + 5; then x can take which of the following values?
Options- A. 3
- B. -2
- C. -3
- D. 1 Discuss
- 5. Which of the following is correct?
Options- A. (4x - 5y)2 = 16x2 - 20xy + 25y2
- B. (4x - 5y)2 = 16x2 + 40xy - 25y2
- C. (4x - 5y)2 = 16x2 - 40xy + 25y2
- D. (4x - 5y)2 = 16x2 - 20xy - 25y2 Discuss
- 6. What is the equation of a line which has 3 as x-intercept and -5 as y-intercept?
Options- A. 3x - 5y = 15
- B. 5x - 3y = 15
- C. 5x + 3y = 15
- D. 3x + 5y = 15 Discuss
- 7. What is the value of Tan 45° - 1/?3 Sec 60°?
Options- A. (1 - 2?3)/2
- B. (?2 - ?3)/?6
- C. (3 - 2?3)/3
- D. (1 - 2?2)/2 Discuss
- 8. If Sin ? = 20/29 , then what is the value of Sec Sin ? ?
Options- A. 29/21
- B. 29/20
- C. 21/20
- D. 21/29 Discuss
- 9. Find the unit place in 194102+294103
Options- A. 0
- B. 6
- C. 8
- D. 2 Discuss
- 10. Determine the value of ?s? for which the equation 5x + 35 = 60x + s has infinite number of solutions.
Options- A. 420
- B. 440
- C. 460
- D. 480 Discuss
Simplification problems
Search Results
Correct Answer: (1 - tanA)2 + (1 + tanA)2
Correct Answer: cos3A + 3sin2cosA
Correct Answer: ?3/2
Correct Answer: 1
Correct Answer: (4x - 5y)2 = 16x2 - 40xy + 25y2
Correct Answer: 5x - 3y = 15
Correct Answer: (3 - 2?3)/3
Correct Answer: 29/21
Correct Answer: 0
Correct Answer: 420
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