Discussion
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- Question
If ? is positive acute angle and 7cos2? + 3sin2? = 4 , then the value of ? is
Options- A. 60°
- B. 30°
- C. 45°
- D. 90°
- Correct Answer
- 60°
- 1. The length of a chord which is at a distance of 12 cm from the centre of a circle of radius 13 cm is
Options- A. 10 cm
- B. 5 cm
- C. 6 cm
- D. 12 cm Discuss
- 2. If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 3. If x = 999, y = 1000, z = 1001, then the value of x3+y3+z3-3xyzx-y+z is
Options- A. 1000
- B. 9000
- C. 1
- D. 9 Discuss
- 4. If ? + ? = 90° and ?:? = 2:1, then the ratio of cos? to cos? is
Options- A. 1:?3
- B. 1:3
- C. 1:?2
- D. 1:2 Discuss
- 5. If (x + 1/x) = 3, then x8+1x8 is equal to
Options- A. 2201
- B. 2203
- C. 2207
- D. 2213 Discuss
- 6. If x = 313- 3-13, then 3x3 + 9x value is
Options- A. 8
- B. 9
- C. 27
- D. 16 Discuss
- 7. If xy (x + y) = m, then the value of x3 + y3 + 3m is:
Options- A. m3xy
- B. m3x+y3
- C. m3x3y3
- D. mx3y3 Discuss
- 8. The value of sin?+sin?cos?+cos? + cos?-cos?sin?-sin? is
Options- A. 1
- B. 2
- C. 1/2
- D. 0 Discuss
- 9. If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?
Options- A. 12
- B. 16
- C. 18
- D. 15 Discuss
- 10. If 3a+4b3c+4d = 3a-4b3c-4d , then
Options- A. ab = cd
- B. ad = bc
- C. ac = bd
- D. a = b = c ? d Discuss
Simplification problems
Search Results
Correct Answer: 10 cm
Correct Answer: 4
Correct Answer: 9
Correct Answer: 1:?3
Correct Answer: 2207
Correct Answer: 8
Correct Answer: mx3y3
Correct Answer: 0
Correct Answer: 15
Correct Answer: ad = bc
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