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- Question
What is the value of 1+aa1/2+a-1/2-a1/2+a-1/21+a+a-1/2 ?
Options- A. ?a
- B. 1/?a
- C. 0
- D. ?a+1
- Correct Answer
- ?a
- 1. If x=8+215 , then what is the value of x+1x ?
Options- A. 2?15
- B. 3?5
- C. (3?5+?3)/2
- D. 3?2+3 Discuss
- 2. What is the value of 1xp-q+1+1xq-p+1 ?
Options- A. 0
- B. 1
- C. x
- D. cant determine Discuss
- 3. If 3P/5 = 7Q/2 = 7R/5, then what is the ratio of p, Q and R respectively?
Options- A. 3 : 2 : 5
- B. 3 : 35 : 14
- C. 5 : 7 : 5
- D. 35 : 6 : 15 Discuss
- 4. If cos?cos?=m and cos?sin?=n, then the value of m2+n2 cos2? is
Options- A. n2
- B. m2
- C. mn
- D. 1 Discuss
- 5. If angles of measure (5y + 62°) and (22° + y) are supplementary , then value of y is
Options- A. 16°
- B. 32°
- C. 8°
- D. 1° Discuss
- 6. If p/q = (x+3)/(x-3), then what is the value of p2+q2p2-q2 ?
Options- A. x+9
- B. x2+96x
- C. x2+186x
- D. 0 Discuss
- 7. What is the simplified value of (1? sin A cos A)(sin A + cos A)?
Options- A. sin2A ? cos2A
- B. sin3A + cos3A
- C. 0
- D. 1 Discuss
- 8. What is the simplified value of 1-sin A1+sin A ?
Options- A. tan A
- B. sec A
- C. sec A + tan A
- D. sec A ? tan A Discuss
- 9. What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.) 21.003 × 39.998 ?209.91 = 126× ?
Options- A. 5
- B. 4
- C. 3
- D. 2 Discuss
- 10. What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)? [(7.99)2?(13.001)2+(4.01)3]2=?
Options- A. -1800
- B. 1450
- C. -1660
- D. 1660 Discuss
Simplification problems
Search Results
Correct Answer: (3?5+?3)/2
Correct Answer: 1
Correct Answer: 35 : 6 : 15
Correct Answer: n2
Correct Answer: 16°
Correct Answer: x2+96x
Correct Answer: sin3A + cos3A
Correct Answer: sec A ? tan A
Correct Answer: 5
Explanation:
Take nearest values21.003 × 39.998 ?209.91 = 126× ?630 = 126× ?? = 5 (approx)
Correct Answer: 1660
Explanation:
[(7.99)^2?(13.001)^2+(4.01)^3]^2= X X= [8^2-13^2+4^3]^2 X= [64-169+64]^2 X= [-41]^2 X=1681
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