Discussion
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- Question
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
- Correct Answer
- 2x2 - 7x + 6 = 0
- 1. Find the value of 199992 x 200008 = ?
Options- A. 39999799936
- B. 39999999836
- C. 39999999936
- D. 39999999926 Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. If cos 2?/3c = x, then the value of x is
Options- A. -1/2
- B. 1/2
- C. -?3/2
- D. ?3/2 Discuss
- 6. The solution set of 4x - 3y = 10 and 3x + y = 14 is
Options- A. {(5, 3)}
- B. {(4, 2)}
- C. {(11, 1)}
- D. {(2, 3)} Discuss
- 7. If 16% of an electricity bill is deducted, Rs 1806 is still to be paid. How much was the bill?
Options- A. Rs 1557
- B. Rs 2186
- C. Rs 1593
- D. Rs 2150 Discuss
- 8. What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?
Options- A. 2
- B. 1
- C. 3
- D. 3/2 Discuss
- 9. What is the value of 1.23+0.83+0.73-2.0161.351.22+0.82+0.72-0.96-0.84-0.56 =
Options- A. 1/4
- B. 1/2
- C. 1
- D. 2 Discuss
- 10. What is the value of S = 11x3x5 + 11x4 + 13x5x7 + 14x7 + 15x7x9 + 17x10 + ... upto 20 terms. Then what is the value of S?
Options- A. 6179/15275
- B. 6070/14973
- C. 7191/15174
- D. 5183/16423 Discuss
Simplification problems
Search Results
Correct Answer: 39999999936
Correct Answer: -1
Correct Answer: -4
Correct Answer: cosecA + cotA
Correct Answer: -1/2
Correct Answer: {(4, 2)}
Correct Answer: Rs 2150
Correct Answer: 2
Correct Answer: 2
Correct Answer: 6070/14973
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