# The quadratic equation whose roots are sin2180 and cos2360 is :

1.  16x2 - 12x + 1 = 0

2.  16x2 + 12x + 1 = 0

3.  16x2 - 12x - 1 = 0

4.  16x2 + 10x + 1 = 0

4

16x<sup>2</sup> - 12x + 1 = 0

Explanation :
No Explanation available for this question

# For all values of ѳ, the values of 3 - cos ѳ + cos (ѳ + π/3 ) lie in the interval:

1.  [-2, 3]

2.  [-2, 1]

3.  [2, 4]

4.  [1, 5]

4

[2, 4]

Explanation :
No Explanation available for this question

# If x = tan 150, y = cosec750 and z = 4 sin 180 , then :

1.  x < y < z

2.  y < z < x

3.  z < x < y

4.  x < z < y

4

x &lt; y &lt; z

Explanation :
No Explanation available for this question

1.  log( 2 - √3)

2.  log ( √3 -2)

3.  log( 2 +√3)

4.  log( 2 + √5)

4

log( 2 +&#8730;3)

Explanation :
No Explanation available for this question

# If, in a Δ ABC, tan A/2  = 5/6 and tan C/2 = 2/5, then a,b,c are such that :

1.  b2 = ac

2.  2b = a + c

3.  2ac = b(a + c)

4.  a + b = c

4

2b = a + c

Explanation :
No Explanation available for this question

# The angles of a triangle are in the ratio 3: 5:10. Then the ratio of the smallest side to the greatest side is:

1.  1 : sin 100

2.  1 : 2sin 100

3.  1 : cos 100

4.  1 : 2cos 100

4

1 : 2cos 100

Explanation :
No Explanation available for this question

# If b + c = 3a, then cot B/2 cot C/2  is equal to :

1.  3

2.  1

3.  4

4.  2

4

2

Explanation :
No Explanation available for this question

# The elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be 300. After walking 120 metres towards it on level ground the elevation is found to be 600

1.  120

2.  60√3

3.  120√3

4.  60

4

60&#8730;3

Explanation :
No Explanation available for this question

1.  π/4

2.  π/2

3.  π/6

4.  π/3

4

&#960;/3

Explanation :
No Explanation available for this question

1.

2.

3.

4.  0

4