Simplification problems
- 1. What should be added to 3(x - 2y) to obtain 2(3x + y) - 5(2x + 3)?
Options- A. 8y - 7x - 15
- B. 8y - 7x + 15
- C. 8y + 7x + 15
- D. 8y + 7x - 15 Also asked in: Bank Exams
Correct Answer: 8y - 7x - 15
- 2. 2sinAsinB is equal to
Options- A. sin(A+B) + sin(A-B)
- B. cos(A-- cos(A+B)
- C. sin(A+B) - sin(A-B)
- D. cos(A+B) + cos(A-B) Also asked in: Bank Exams
Correct Answer: cos(A-- cos(A+B)
- 3. For triangle PQR, what is the equation of altitude PS if coordinates of P, Q and R are (5,1), (0,4) and (2,3) respectively?
Options- A. 7x + 2y = 33
- B. 2x - 7y = 9
- C. 2x - 7y = -3
- D. 7x + 2y = -33 Also asked in: Bank Exams
Correct Answer: 2x - 7y = 9
- 4. If 51.97 (81.18 - x ) - 59.39 = 5.268, then value of x will be
Options- A. - 24.912
- B. - 68.492
- C. 93.868
- D. 197.808 Also asked in: Bank Exams
Correct Answer: 93.868
- 5. What is the value of sin -300°?
Options- A. 1
- B. ?3/2
- C. 1/2
- D. ?3/2 Also asked in: Bank Exams
Correct Answer: ?3/2
- 6. If 2(3x + 5) > 4x - 5 < 3x + 2; then x can take which of the following values?
Options- A. 8
- B. 6
- C. -8
- D. -10 Also asked in: Bank Exams
Correct Answer: 6
- 7. If (4x - 5) = (3x - 1), then the numerical value of (x + 4)2
Options- A. 16
- B. 64
- C. 32
- D. 8 Also asked in: Bank Exams
Correct Answer: 64
- 8. 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) Also asked in: Bank Exams
Correct Answer: cot(A/2)
- 9. 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 Also asked in: Bank Exams
Correct Answer: 6x2y + 8xy2 - 15y2z
- 10. If (1 - sinA)/(1 + sinA) = x, then x is
Options- A. (cosecA - cotA)2
- B. secA - tanA
- C. (secA - tanA)2
- D. cosecA - cotA Also asked in: Bank Exams
Correct Answer: (secA - tanA)2
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