What is the value of 6x2 - 5y26x2&# | Simplification Questions & Answers

Q:

$\frac{3}{5} + \frac{3}{7} = ?$

A) 935	B) 612
C) 1135	D) 635

Answer & Explanation Answer: C) 1135

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Q:

If $a^{2} + \frac{1}{a^{2}} = 3, then a^{3} + \frac{1}{a^{3}} = ?$

A) 3√5	B) 2√5
C) 2√3	D) 3√3

Answer & Explanation Answer: B) 2√5

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Q:

The cost of one dozen bananas is Rs.5. The cost of one dozen oranges is Rs.75. What will the cost of one and a quarter dozen bananas and three-fourth dozen oranges?

A) Rs. 109.25	B) Rs. 87.25
C) Rs. 71.75	D) Rs. 62.50

Answer & Explanation Answer: D) Rs. 62.50

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Q:

Find the factors of $(x^{2} + x - 42)$

A) (x + 14)(x - 3)	B) (x + 6)(x - 7)
C) (x - 6)(x + 7)	D) (x - 14)(x + 3)

Answer & Explanation Answer: C) (x - 6)(x + 7)

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Q:

$What is the value of (2 + \tan 60^{0}) ?$

A) 3	B) 2/√3
C) 4/√3	D) 2+√3

Answer & Explanation Answer: D) 2+√3

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Q:

What is the square root of 9409?

A) 83	B) 87
C) 89	D) 97

Answer & Explanation Answer: A) 83

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Q:

$If \sqrt{3} = 1.732, then what is the value of (\sqrt{3} - \frac{10}{\sqrt{3}} + \sqrt{27}) ?$

A) 1.154	B) 1.577
C) 1.464	D) 2.358

Answer & Explanation Answer: A) 1.154

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Q:

If sin x + cos x = √2 sin x, then the value of tan x is

A) √2 - 1	B) √2 + 1
C) 1	D) √2

A) 2	B) 3
C) 4	D) 5

What is the value of $(6 x^{2} - 5 y^{2}) (6 x^{2} + 5 y^{2}), if x = \frac{1}{\sqrt{3}} and y = \frac{1}{\sqrt{5}}$ ?

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What is the value of 6x2 - 5y26x2 + 5y2, if x = 13 and y = 15?

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What is the value of $(6 x^{2} - 5 y^{2}) (6 x^{2} + 5 y^{2}), if x = \frac{1}{\sqrt{3}} and y = \frac{1}{\sqrt{5}}$ ?