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Simplification
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Question
If 5x + 1/x = 10, then x2 + 125x2 is equal to
Options
A. 215
B. 335
C. 315
D. 235
Correct Answer
335
Tags:
Bank Exams
Simplification problems
Search Results
1. A and B together have Rs. 6300. If 5/19 of A's amount is equal to 2/5 of B's amount. The amount of 'B' is
Options
A. Rs. 2500
B. Rs. 3800
C. Rs.2300
D. Rs. 4000
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Correct Answer: Rs. 2500
2. If xy = 56 and x2+ y2= 113 , then what will be the value of (x + y)?
Options
A. 29
B. 21
C. 36
D. 15
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Correct Answer: 15
3. If cosec4A - cosec2A = x , then value of x is?
Options
A. tan4A + tan2A
B. cot4A + cot2A
C. cot4A - cot2A
D. tan4A - tan2A
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Correct Answer: cot4A + cot2A
4. Factors of 48x3- 8x2- 93x- 45 are
Options
A. (4x + 3)(4x - 3)(3x - 5)
B. (4x - 3)(4x - 3)(3x- 5)
C. (4x + 3)(4x + 3)(3x - 5)
D. (4x - 3)(4x + 3)(3x + 5)
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Correct Answer: (4x + 3)(4x + 3)(3x - 5)
5. If 2cosAsinB = x, then the value of x is?
Options
A. sin(A+B) + sin(A-B)
B. cos(A++ cos(A-B)
C. sin(A+B) - sin(A-B)
D. cos(A-B) - cos(A+B)
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Correct Answer: sin(A+- sin(A-B)
6. If sinA + sin2A = 1 then what is the value of cos2A + cos4A ?
Options
A. 1
B. 2
C. 1/2
D. 1/4
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Correct Answer: 1
7. The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to
Options
A. 335
B. 325
C. 315
D. 3
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Correct Answer: 335
8. If a+b=3 then the value of a3+b3+9ab-27 is
Options
A. 24
B. 25
C. 0
D. 27
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Correct Answer: 0
9. If x+1/x = 2, then the value of x7+2/x6 is equal to?
Options
A. 0
B. 1
C. 2
D. 3
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Correct Answer: 3
10. If 5 sin2?+ 4 cos2?= 9/2 and 0 /2 then tan? is equal to?
Options
A. 1
B. 0
C. -1
D. 1/4
Show Answer
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Correct Answer: 1
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