Discussion
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- Question
If ? is acute angle and tan ? ? cot ? = 0, then what is the value of tan26? + cot100? ?
Options- A. -2
- B. 0
- C. 1
- D. 2
- Correct Answer
- 2
- 1. What is the value of sin (??/3) + cos(??/6)?
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 2. If sum of the areas of the circumcircle and the incircle of an equilateral triangle is 770 cm2, then what is the area (in cm2) of the triangle?
Options- A. 125?3
- B. 147?3
- C. 156?3
- D. 169?3 Discuss
- 3. If x2+ y2+ z2= xy + yz + zx , then what is the value of (7x + 3y ? 5z)/5x?
Options- A. 0
- B. 1
- C. 5
- D. 33/5 Discuss
- 4. If x ? 3 + [1/(x ? 3)] = 4, what is the value of [(x ? 3)3+ [1/(x ? 3)3] ?
Options- A. 14
- B. 18
- C. 52
- D. 76 Discuss
- 5. If x/y = 4/9, then what is the value of (7x2 ? 19xy + 11y2)/y2 ?
Options- A. 59/81
- B. 100/27
- C. 319/81
- D. 913/81 Discuss
- 6. If sin 3? sec 2? = 1, then what is the value of [3 tan2(5?/2) ? 1] ?
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 7. If a + b + c = 11 and ab + bc + ca = 17, then what is the value of a3 + b3 + c3 ? 3abc ?
Options- A. 121
- B. 168
- C. 300
- D. 770 Discuss
- 8. If (x/5) + (5/x) = ? 2, then what is the value of x3 ?
Options- A. ?125
- B. 5
- C. 1/125
- D. 625 Discuss
- 9. What is the simplified value of [2/(cot A ? tan A)]?
Options- A. sin A cos A
- B. tan 2A
- C. sin2 A
- D. cos2 A Discuss
- 10. What is the simplified value of (sec4 A ? tan2 A) ? (tan4 A + sec2 A) ?
Options- A. -1
- B. 1/2
- C. 1
- D. 0 Discuss
Simplification problems
Search Results
Correct Answer: 0
Correct Answer: 147?3
Correct Answer: 1
Correct Answer: 52
Correct Answer: 319/81
Correct Answer: 2
Correct Answer: 770
Correct Answer: ?125
Correct Answer: tan 2A
Correct Answer: 0
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