Discussion
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- Question
If 3.352 - (9.759 - x ) - 19.64 = 7.052, then what is the value of x?
Options- A. -6.181
- B. 13.581
- C. 33.099
- D. 39.803
- Correct Answer
- 33.099
- 1. If cos?1-sin?+cos?1+sin? = 4 , then the value of ? (0°
Options- A. 60°
- B. 45°
- C. 30°
- D. 35° Discuss
- 2. If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is
Options- A. -1
- B. 1
- C. -2
- D. 2 Discuss
- 3. If x = ?2+1, then the value of x4-1/x4
Options- A. 8?2
- B. 18?2
- C. 6?2
- D. 24?2 Discuss
- 4. If x = a cos?+ b sin? and y = b cos?- a sin?, then x2 + y2 is equal to
Options- A. ab
- B. a2+b2
- C. a2-b2
- D. 1 Discuss
- 5. The Simplified form of (b3x2a4z3)*(b4x3a3z2)/(a2b4z3) is
Options- A. b2x4a6z
- B. b3x2a4z3
- C. b3x5a5z2
- D. bazx Discuss
- 6. Square of (7 - 4x) is
Options- A. 16x2 - 28x + 49
- B. 49 - 28x - 16x2
- C. 49 - 56x - 16x2
- D. 16x2 - 56x + 49 Discuss
- 7. If 7 + 3x ? 5 - x/2 and 2x + 3 ? 5 - 2x; then x can take which of the following values?
Options- A. 0
- B. 1
- C. 2
- D. -1 Discuss
- 8. What will be the roots of the quadratic equation x2 - 25x + 156 = 0 ?
Options- A. 12, 13
- B. 25, 1
- C. 9, 16
- D. 31, 6 Discuss
- 9. Which of the following is not a quadratic equation?
Options- A. 3x(x + 5) 11 = 2x(x - 2) + 6
- B. 4x(x + 3) + 7 = 4x(x - 11) + 9
- C. x(x + 2) 15 = x(2x - 5) + 11
- D. 4x - 6x + 9 = 0 Discuss
- 10. In ?PQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 4:1 and length of QR is 15 cm,what is the length of ST?
Options- A. 3 cm
- B. 5 cm
- C. 12 cm
- D. 10 cm Discuss
Simplification problems
Search Results
Correct Answer: 60°
Correct Answer: -1
Correct Answer: 24?2
Correct Answer: a2+b2
Correct Answer: b3x5a5z2
Correct Answer: 16x2 - 56x + 49
Correct Answer: 0
Correct Answer: 12, 13
Correct Answer: 4x(x + 3) + 7 = 4x(x - 11) + 9
Correct Answer: 12 cm
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