# Area of region bounded by y=xand y=2 is

1.  4

2.  2

3.  1/2

4.  1

4

4

Explanation :
No Explanation available for this question

# cot 160 cot 440+cot 440cot 760- cot 760cot 160=

1.  0

2.  1

3.  3

4.  4

4

3

Explanation :
No Explanation available for this question

# sin 480.sin 120=

1.  1+√5/8

2.  1-√5/8

3.  √5+1/8

4.  √5-1/8

4

1+√5/8

Explanation :
No Explanation available for this question

# 1+3+7+15…n terms=

1.  2n+1-n-2

2.  n2+n-2

3.  2n+n2-n

4.  none

4

2n+1-n-2

Explanation :
No Explanation available for this question

# 2 cos 540. Sin 660=

1.  √3/2+ sin120

2.  √3/2-sin120

3.  √3/2+ cos 120

4.  √3/2-cos 120

4

√3/2+ sin120

Explanation :
No Explanation available for this question

# 3+13+29+51+79+…=

1.  2n2+7n3

2.  n2+5n3

3.  n3+2n2

4.  none

4

n3+2n2

Explanation :
No Explanation available for this question

# sin 120 sin 240 sin 480 sin840=

1.  1/16

2.  3/16

3.  1/32

4.  1/8

4

1/16

Explanation :
No Explanation available for this question

# 1+4+13+40+…n terms=

1.  3n+1-2n/2n

2.  (3n+1-2n-3)/4

3.  3n-1+3n/9

4.  (3n+1+2n2)/8

4

(3n+1-2n-3)/4

Explanation :
No Explanation available for this question

# sin 200.sin 400.sin 600 sin800=

1.  1/16

2.  3/16

3.  1/32

4.  1/8

4

3/16

Explanation :
No Explanation available for this question

1.  1/16

2.  3/16

3.  1/32

4.  1/8

4