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- Question
If Sin 31° = xy , then the value of Sec 31° - Sin 59° is
Options- A. x2yy2-x2
- B. -x2yy2-x2
- C. -y2y2-x2
- D. x
- Correct Answer
- x2yy2-x2
- 1. If x = 3+13 , then the value of x-12642x-1x-233 is
Options- A. ?3/6
- B. 2?3/6
- C. 5/6
- D. 2/3 Discuss
- 2. If ?x - ?y = 1 , ?x + ?y = 17 then ?xy = ?
Options- A. ?72
- B. 72
- C. 32
- D. 24 Discuss
- 3. The average of 100 observations was calculated as 35.It was found later, that one of the observation was misread as 83 instead of 53. The correct average is :
Options- A. 32.7
- B. 34.7
- C. 35.7
- D. 36.7 Discuss
- 4. The value of 2.33+0.0272.33-0.69+0.09
Options- A. 2
- B. 2.27
- C. 2.33
- D. 2.6 Discuss
- 5. If 2x+14x = 1 , then the value of x2+164x2 is
Options- A. 0
- B. 1
- C. 1/4
- D. 2 Discuss
- 6. If ?3 = 1.732, then the value of 9+233 ?
Options- A. 7.169
- B. 7.196
- C. 5.198
- D. 7.296 Discuss
- 7. If 2x-12x = 5, then what is the value x2 + 116x2 - 2
Options- A. 19/4
- B. 23/4
- C. 27/4
- D. 31/4 Discuss
- 8. If x = 1/(?2+1) then the value of x2 + 2x - 1 is
Options- A. 2?2
- B. 4
- C. 0
- D. 2 Discuss
- 9. If x + 1/x = ?13, then 3x(x2-1) equal to
Options- A. 3?13
- B. ?13/3
- C. 1
- D. 3 Discuss
- 10. If ? is acute angle and sin(?+18°)= 1/2, then the value of ? in circular measure is
Options- A. ?/12 radians
- B. ?/15 radians
- C. 2?/5 radians
- D. 3?/13 radians Discuss
Simplification problems
Search Results
Correct Answer: 5/6
Correct Answer: 72
Correct Answer: 34.7
Correct Answer: 2.6
Correct Answer: 0
Correct Answer: 7.196
Correct Answer: 19/4
Correct Answer: 0
Correct Answer: 1
Correct Answer: ?/15 radians
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