# I:The area enclosed between the parabola y2=4ax and the lines x=a,x=9a is 208a2/3 II:The area contained between the curve xy

1.  only I is true

2.  only II is true

3.  both I and II are true

4.  neither I nor II true

4
Correct Answer :

both I and II are true

Explanation :
No Explanation available for this question

# If a,b,c are the values ofthen the ascending order of a,b,c is

1.  a,b,c

2.  b,c,a

3.  c,a,b

4.  a,c,b

4
Correct Answer :

c,a,b

Explanation :
No Explanation available for this question

# If a,b,c are the values ofthen the ascending order of a,b,c is

1.  a,b,c

2.  b,c,a

3.  c,a,b

4.  c,b,a

4
Correct Answer :

c,b,a

Explanation :
No Explanation available for this question

# (1)+(1+2)+(1+2+3)+…. n brackets=

1.  n(n+1)(n+2)/6

2.  n(n+1)(3n2+23n+46)/12

3.  n(27n3+90n2+45n-50)/4

4.  n(n+1)(2n+1)/6

4
Correct Answer :

n(n+1)(n+2)/6

Explanation :
No Explanation available for this question

# (1)+(1+3)+(1+3+5)+…. n brackets=

1.  n(n+1)(n+2)/6

2.  n(n+1)(3n2+23n+46)/12

3.  n(27n3+90n2+45n-50)/4

4.  n(n+1)(2n+1)/6

4
Correct Answer :

n(n+1)(2n+1)/6

Explanation :
No Explanation available for this question

# If a,b,c are the values of then the descending order of a,b,c is

1.  a,b,c

2.  b,c,a

3.  c,a,b

4.  a,c,b

4
Correct Answer :

a,b,c

Explanation :
No Explanation available for this question

# Sum of n brackets of (1)+(1/3+1/32)+(1/33+1/34+1/35)+…. Is

1.  (3n-1)3/2.4n-1

2.  (3n-1)/2.3 (n-1)(n+2)/2

3.  (3n+1)/3.7n-1

4.  none

4
Correct Answer :

(3n-1)/2.3 (n-1)(n+2)/2

Explanation :
No Explanation available for this question

# If a,b,c are the values ofthen the ascending order of a,b,c is

1.  a,b,c

2.  b,c,a

3.  c,a,b

4.  a,c,b

4
Correct Answer :

a,b,c

Explanation :
No Explanation available for this question

# (1)+(2+3)+(4+5+6)+….n brackets=

1.  n(n+1)(n2+n+2)/8

2.  n(n+1)(n2-n+2)/8

3.  n(n-1)(n2+n+2)/8

4.  n(n-1)(n2-n+2)/8

4
Correct Answer :

n(n+1)(n2+n+2)/8

Explanation :
No Explanation available for this question

# The value of the sum in the n th bracket of (1)+(2+3)+(4+5+6+7)+(8+9+10+15)+… is

1.  2n(2n+2n-1-1)

2.  2n-1(2n+2n-1-1)

3.  2n-2(2n+2n-1-1)

4.  none

4
Correct Answer :

2n-2(2n+2n-1-1)

Explanation :
No Explanation available for this question

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