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- Question
If secA + tanA = a, then the value of cosA is
Options- A. a2+12a
- B. 2aa2+1
- C. a2-12a
- D. 2aa2-1
- Correct Answer
- 2aa2+1
- 1. If x, y, z are the three factors of a3 -7a - 6 , then value of x+y+z will be
Options- A. 3a
- B. 3
- C. 6
- D. a Discuss
- 2. If ax + by = 1 and bx + ay = 2aba2+b2 then x2+y2a2+b2 is equal to
Options- A. 1
- B. 2
- C. 0.5
- D. 0 Discuss
- 3. If a+1b= b+1c = c+1a (a , b, c are not equal) then the value of abc =
Options- A. + 1
- B. - 1
- C. +1 & -1
- D. None of the options Discuss
- 4. If a = 1/a-5, then the value of a + 1/a = ?
Options- A. ?29
- B. ?-29
- C. - ?29
- D. ?27 Discuss
- 5. If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)
Options- A. 0
- B. 1
- C. 4
- D. 1+ abcd Discuss
- 6. If sin P + cosec P = 2, then the value of sin7P + cosec7P is
Options- A. 1
- B. 2
- C. 3
- D. 0 Discuss
- 7. If cosx.cosy + sinx.siny = -1 then cosx + cosy is
Options- A. -2
- B. 1
- C. 0
- D. 2 Discuss
- 8. The value of the expression 2(sin6?+cos6?) - 3(sin4?+cos4?) + 1 is
Options- A. -1
- B. 0
- C. 1
- D. 2 Discuss
- 9. If cos? = x2-y2x2+y2 , then the value of cot? is
Options- A. 2xyx2-y2
- B. 2xyx2+y2
- C. x2+y22xy
- D. x2-y22xy Discuss
- 10. If x = cosec? - sin? and y = sec? - cos?, then the relation between x and y is
Options- A. x2+ y2+ 3 =1
- B. x2y2 (x2+ y2+3)=1
- C. x2 (x2+ y2 - 5)=1
- D. y2 (x2+ y2 - 5)=1 Discuss
Simplification problems
Search Results
Correct Answer: 3a
Correct Answer: 1
Correct Answer: +1 & -1
Correct Answer: ?29
Correct Answer: 0
Correct Answer: 2
Correct Answer: 0
Correct Answer: 0
Correct Answer: x2-y22xy
Correct Answer: x2y2 (x2+ y2+3)=1
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