Discussion
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- Question
If xy = 22 and x2+ y2= 100 , then what will be the value of (x + y)?
Options- A. 12
- B. 144
- C. 72
- D. 6
- Correct Answer
- 12
- 1. If tan2A - sin2A = x , then value of x is
Options- A. tan2A sin2A
- B. cot2A cosec2A
- C. tanA sinA
- D. cotA cosecA Discuss
- 2. If cotA + cotB = x, then value of x is
Options- A. (cotAcotB + 1)/(cotB - cotA)
- B. (cotAcotB + 1)/(cotB + cotA)
- C. (cotAcotB - 1)/(cotB + cotA)
- D. (cotAcotB - 1)/(cotB - cotA) Discuss
- 3. 199994 x 200006 = ?
Options- A. 39999799964
- B. 39999999864
- C. 39999999954
- D. 39999999964 Discuss
- 4. What is the value of cot210°?
Options- A. 1/?3
- B. -1/?3
- C. ?3
- D. -?3 Discuss
- 5. If (36 - 16x) - (4x - 8) = 4, then the value of x is
Options- A. 4
- B. 2
- C. 6
- D. 3 Discuss
- 6. The point P(5,-2) divides the segment joining the points (x,0) and (0,y) in the ratio 2:5. What is the value of x and y?
Options- A. x = -7; y = 7
- B. x = 3; y = -3
- C. x = 7; y = -7
- D. x = -3; y = 3 Discuss
- 7. A T.V was sold at a profit of 5% If it had been sold at a profit of 10% , the profit would have been Rs. 1000 more. What is its cost price ?
Options- A. Rs.20000
- B. Rs.5000
- C. Rs.10000
- D. Rs.15000 Discuss
- 8. If pq(p+q) = 1, then the value of 1p3q3-p3-q3 is equal to
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 9. On dividing 24a2b2 by 6b2 , we will get
Options- A. 4b
- B. 4ab
- C. 4
- D. 4a2 Discuss
- 10. If 1/?(cosec2A - 1) = x, then value of x is
Options- A. cotA
- B. tanA
- C. sinA
- D. cosA Discuss
Simplification problems
Search Results
Correct Answer: tan2A sin2A
Correct Answer: (cotAcotB - 1)/(cotB + cotA)
Correct Answer: 39999999964
Correct Answer: ?3
Correct Answer: 2
Correct Answer: x = 7; y = -7
Correct Answer: Rs.20000
Correct Answer: 3
Correct Answer: 4a2
Correct Answer: tanA
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