In ΔABC, if a=5, b=6, sin A=5/6, then B=

1.  π

2.  π/2

3.  π/3

4.  π/4

4

π/2

Explanation :
No Explanation available for this question

The extremities of a diagonal of a parallelogram are the points (3,-4) and (-6,5). If the third vertex is (-2,1) then the fourth vertex is

1.  (1,0)

2.  (-1,0)

3.  (1,1)

4.  (-1,-1)

4

(-1,0)

Explanation :
No Explanation available for this question

In ΔABC , if A=750, B=450, C=√3, then b=

1.  2

2.  √3

3.  2√3

4.  √2

4

√2

Explanation :
No Explanation available for this question

Taking AB,AD as axes the coordinates of the point C when ABCD is a square of side  a is

1.  (a,a)

2.  (a,2a)

3.  (2a,2a)

4.  none

4

Explanation :
No Explanation available for this question

In ΔABC , if a= √3+1, b=2, B=450, then A=

1.  300

2.  600

3.  750

4.  450

4

750

Explanation :
No Explanation available for this question

Taking AB,AD as axes the coordinates of the point C when ABCD is a rectangle of side  a is

1.  (a,b)

2.  (a,2b)

3.  (2a,b)

4.  none

4

(a,b)

Explanation :
No Explanation available for this question

ABCD is square of side 2a. Taking the centre of the square as origin and axes parallel to the sides AB and AD. The coordinate of the vertices of the square are

1.  (a,a), (a,0), (-a,a), (a,-a)

2.  (a,a), (a,-a), (-a,-a), (-a,a)

3.  (a,0), (a,a), (-a,-a), (-a,a)

4.  none

4

(a,a), (a,-a), (-a,-a), (-a,a)

Explanation :
No Explanation available for this question

In ΔABC,  if A=350, b=8, a=6, B=sin-1 x, then x=

1.  1/2

2.  1/3

3.  2/3

4.  1

4

2/3

Explanation :
No Explanation available for this question

1.   2

2.  3

3.  -2

4.  -3

4

2

Explanation :
No Explanation available for this question

1.  2

2.  3

3.  -2

4.  -3

4