Discussion
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- Question
The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?
Options- A. -7
- B. 4
- C. 7
- D. -4
- Correct Answer
- 7
- 1. If x2+1x2 = 2 , then the value of x - 1x is
Options- A. -2
- B. 0
- C. 1
- D. -1 Discuss
- 2. tan(A/2) is equal to
Options- A. tanA/(1 + secA)
- B. 1/(cosecA + cotA)
- C. tanA/(1 + cosecA)
- D. 1/(secA + cotA) Discuss
- 3. What is the value of tan -240°?
Options- A. -?3
- B. 1/?3
- C. -1/?3
- D. ?3 Discuss
- 4. If a + b = 11 and a2+ b2= 61 , then value of ab is
Options- A. 12
- B. 96
- C. 24
- D. 30 Discuss
- 5. If 4(2x - 4) - 2 > 3x - 1 ? 4x - 7, then x can take which of the following values?
Options- A. 7
- B. 6
- C. 2
- D. 0 Discuss
- 6. If tanA + tanB = X, then the value of X is
Options- A. (tanA - tanB)/(1 + tanAtanB)
- B. (tanA + tanB)/(1 - tanAtanB)
- C. (tanA + tanB)/(1 + tanAtanB)
- D. (tanA - tanB)/(1 - tanAtanB) Discuss
- 7. If 5x - 40 = 3x, then the numerical value of 2x - 11 is
Options- A. 29
- B. 39
- C. 19
- D. 9 Discuss
- 8. What is the area of the sector whose central angle is 90° and radius of the circle is 14 cm?
Options- A. 308 sq cm
- B. 77 sq cm
- C. 154 sq cm
- D. 231 sq cm Discuss
- 9. If cos3A = X, then value of X?
Options- A. 4cos3A - 3cosA
- B. 4cos3A + 3cosA
- C. 3cosA - 4cos3A
- D. cosA + 4cos3A Discuss
- 10. In ?XYZ measure of angle Y is 90 deg. If cosecX = 13/12, and XY = 1cm, then what is the length ( in cm ) of side YZ?
Options- A. 2.6
- B. 1.5
- C. 2.4
- D. 2 Discuss
Simplification problems
Search Results
Correct Answer: 0
Correct Answer: tanA/(1 + secA)
Correct Answer: -?3
Correct Answer: 30
Correct Answer: 6
Correct Answer: (tanA + tanB)/(1 - tanAtanB)
Correct Answer: 29
Correct Answer: 154 sq cm
Correct Answer: 4cos3A - 3cosA
Correct Answer: 2.4
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