Discussion
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- Question
If sin?+cos?sin?-cos?=3, then the value of sin4?-cos4? is
Options- A. 4/3
- B. 3/4
- C. 5/3
- D. 3/5
- Correct Answer
- 3/5
- 1. In ?ABC if the median AD=1/2 BC, then ?BAC is
Options- A. 90°
- B. 45°
- C. 60°
- D. 75° Discuss
- 2. If 2x+2x=3, then the value of x3+1x3+2 is
Options- A. 3/4
- B. 4/5
- C. 5/8
- D. 7/8 Discuss
- 3. If a2b+c=b2c+a=c2a+b=1 then the value of 21+a+21+b+21+c
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 4. If sin? + cos? = 1, then the sin? cos? is equal to
Options- A. 0
- B. 1
- C. 1/2
- D. -1/2 Discuss
- 5. If x+1x=5, then the value of x1+x+x2 is
Options- A. 1/5
- B. 1/6
- C. 5
- D. 6 Discuss
- 6. If (x2/yz) + (y2/zx) + (z2/xy) = 3 , then what is the value of (x + y + z)3 ?
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 7. If x1/4 + x-1/4 = 2 , then what is the value of x81 + (1/x81) ?
Options- A. -2
- B. 0
- C. 1
- D. 2 Discuss
- 8. If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 ) ?
Options- A. 75
- B. 83
- C. 217
- D. 225 Discuss
- 9. If x2 + (1/x2) = 1 , then what is the value of x48 + x42 + x36 + x30 + x24 + x18 + x12 + x6 + 1 ?
Options- A. -9
- B. 0
- C. 1
- D. 9 Discuss
- 10. What is the simplified value of sin2(90??)?[sin(90??)sin?/tan?] ?
Options- A. 1
- B. cosec ?
- C. 0
- D. cos ? Discuss
Simplification problems
Search Results
Correct Answer: 90°
Correct Answer: 7/8
Correct Answer: 2
Correct Answer: 0
Correct Answer: 1/6
Correct Answer: 0
Correct Answer: 2
Correct Answer: 83
Correct Answer: 1
Correct Answer: 0
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