ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 16

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  A
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  B
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  C
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  D

cotθ= sin 2θifθ=

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

The smallest positive root of the equation tan x - x = 0 lies on

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  A
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  B
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  C
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  D

• 7 A
• 5 B
• 6 C
• None of these D

The number of points of intersection of two curves y = 2 sin x and y = 5x²+ 2x + 3 is

• 0 A
• 1 B
• 2 C
• None of these D

General solution of tan 5θ= cot 2θis

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

One root of the equation cos x - x + 1/2 = 0 lies in the interval

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  A
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  B
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  C
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  D

• I andII quadrants
  A
• II andIII quadrants B
• II andIVquadrants C
• none of these D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
• none of these D

If Sin A = sin B, cos A = cos B, then the value of A in terms of B is

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  A
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  B
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  C
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  D

• 1 A
• 2 B
• 3 C
• None of these D

• 30° A
• 45° B
• 60° C
• 75° D

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  A
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  B
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  C
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  D

In which quadrant is the solution of the equation sin x + 1 = 0

• I andII quadrants A
• II andIII quadrants B
• III andIVquadrants C
• none of these D

cotθ= sin 2θifθ=

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  A
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  B
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  C
• 
  D

The solution of the equation 3 tan²x = 1 is ____________

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  A
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  B
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  C
• none of these D

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  A
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  B
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  C
• none of these D

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  A
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  B
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  C
• both a & c D

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  A
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  B
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  C
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  D

The number of values of x in the interval [0, 5π] satisfying the equation 3 sin²x - 7 sinx + 2 = 0 is

• 0 A
• 5 B
• 6 C
• 10 D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
• none of these D

The general value ofθsatisfying the equation 2 sin²θ- 3 sinθ-2 = 0 is

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D