The equation of the locus of the point whose distance from y-axis is half the distance from origin is

**A. ** x^{2} + 3y^{2} = 0

**B. ** x^{2} - 3y^{2}
= 0

**C. ** 3x^{2} + y^{2} = 0

**D. ** 3x^{2} - y^{2}
= 0

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

No Explaination.

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A line perpendicular to the line 5x - y = 0 forms a triangle with the coordinate axes. If the area of the triangle is 5 sq. units, then its equation is

**A. ** x+ 5y ± 5√2 = 0

**B. ** x- 5y ± 5√2 = 0

**C. ** 5x+y± 5√2 = 0

**D. ** 5x-y±5√2 = 0

**Answer : ****Option A**

**Explaination / Solution: **

No Explaination.

No Explaination.

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If the lines represented by the equation 6x^{2}
+ 41xy - 7y^{2} = 0 make angles and
with x- axis then tanα tanβ =

**A. ** -6/7

**B. ** 6/7

**C. ** -7/6

**D. ** 7/6

**Answer : ****Option A**

**Explaination / Solution: **

No Explaination.

No Explaination.

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If (1 + x^{2})^{2} (1 + x)^{n}
= a_{0} + a_{1}x + a_{2}x^{2} +……..+ x^{n+4}
and if a_{0}, a_{1}, a_{2} are in AP, then n is

**A. ** 1

**B. ** 2

**C. ** 3

**D. ** 4

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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The value of the series 1/2 + 7/4 + 13/8 + 19/16 +…………. is

**A. ** 14

**B. ** 7

**C. ** 4

**D. ** 6

**Answer : ****Option B**

**Explaination / Solution: **

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No Explaination.

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If ^{(n+5)}P_{(n+1)} = ( 11(n-1) /2 )^{(n+3)}P_{n}, then the value of n are

**A. ** 7 and 11

**B. ** 6 and 7

**C. ** 2 and 11

**D. ** 2 and 6

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

No Explaination.

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In a plane there are 10 points are there out of which 4 points are collinear, then the number of triangles formed is

**A. ** 110

**B. ** ^{10}C_{3}

**C. ** 120

**D. ** 116

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

No Explaination.

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1/cos 80̊ - √3/sin 80̊ =

**A. ** √2

**B. ** √3

**C. ** 2

**D. ** 4

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

No Explaination.

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No Explaination.

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If |x + 2| ≤ 9, then x belongs to

**A. ** (-∞,-7)

**B. ** [-11, 7]

**C. ** (-∞,-7) ∪ [11, ∞)

**D. ** (-11, 7)

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

No Explaination.

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