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1
Q:

For any two real numbers a and b.

a-b2+b-a2 is

A) always zero B) never zero
C) positive only if a ≠ b D) positive if an only if a > b

Answer:   C) positive only if a ≠ b



Explanation:
Subject: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
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If rsin∅ =1, rcos∅=√3, then the value of r2tan∅ is

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(1132 + 1152 + 1172 - 113 x 115 - 115 x 117 - 117 x 113) is equal to

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Answer & Explanation Answer: D) 12

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If 4x2 - 12x + k is a perfect square, then the value of k is

A) 9 B) 12
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Answer & Explanation Answer: A) 9

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Q:

The value of 1+tan2∅(1-sin2∅) is

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Answer & Explanation Answer: B) 1

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