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Q:

If √ $(1 + \tan^{2} A) = x$ , then the value of x is

A) sinA	B) cosecA
C) secA	D) cosA

Answer & Explanation Answer: C) secA

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

$If a - b = 6 and ab = 16, then a^{3} - b^{3} is$

A) 504	B) 702
C) 728	D) 511

Answer & Explanation Answer: A) 504

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Q:

Expand and simplify ${(2 x + 5)}^{2} * (4 x - 1) - (3 x^{3} - 16 x^{2} + 25 x - 21)$

A) 13x3 + 92x2 - 55x + 4	B) 13x3 - 92x2 - 55x - 4
C) 13x3 + 92x2 + 55x - 4	D) 13x3 - 92x2 + 55x + 4

Answer & Explanation Answer: C) 13x3 + 92x2 + 55x - 4

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

Q:

If x + y = 12 and $x^{2} + y^{2} = 94$ , then xy is

A) 25	B) 50
C) 144	D) 238

Answer & Explanation Answer: A) 25

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Q:

If ${√(1 - sin}^{2} A) = x$ , then the value of x is

A) tanA	B) cosA
C) cosecA	D) secA

Answer & Explanation Answer: B) cosA

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Filed Under: Simplification
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Q:

Simplify $486 b^{3} x^{2} a^{4} z^{3} / 27 a^{3} b^{2} z$

A) 18bx2az2	B) 18bx2a2z
C) 36ba2z	D) 36bxaz

Answer & Explanation Answer: A) 18bx2az2

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Filed Under: Simplification
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Q:

What is the value of $cosecA / \sqrt ({cosec}^{2} A - 1)$ ?

A) sinA	B) secA
C) tanA	D) cosA

Answer & Explanation Answer: B) secA

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If x - y = 7 and x + y = 13, then $x^{2} - y^{2}$ is

A) 91	B) -30
C) 30	D) -91

Answer & Explanation Answer: D) -91

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Filed Under: Simplification
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