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Ruba Balu
Subject: Maths
, asked on 12/11/17
15
Q15. If one A M 'a' and two GM' s p and q are inserted between any two given numbers, show that
p
^{3}
+
q
^{3}
= 2
apq
.
Answer
1
Ruba Balu
Subject: Maths
, asked on 12/11/17
Q14. Find the sum to n terms : 6, 9, 16, 27...
Answer
1
Ruba Balu
Subject: Maths
, asked on 12/11/17
plss answer
Q.13. Find the sum of n terms:
$12\times 5+15\times 8+18\times 11+.........$
Answer
1
Ruba Balu
Subject: Maths
, asked on 12/11/17
Ques : Find 4 numbers in GP in which the sum of the extreme terms is 112 and the sum of the
middle terms is 48.
Answer
1
Ruba Balu
Subject: Maths
, asked on 5/11/17
If a, b, c and d are in GP show that ax^3 + bx^2 +cx + d is divisible by ax^2 +c.
Answer
1
Kartik Agarwal
Subject: Maths
, asked on 5/11/17
Let a,b,c,d and e be in the A.P such that a+b+c+d+e is the cube of an integer and b+c+d is square of an integer. Then the least possible value of c is
Answer
1
Ruba Balu
Subject: Maths
, asked on 4/11/17
15th
Q15. If one A M 'a' and two G M' s p and q are inserted between any two given numbers, show that p
^{3}
^{ }
+ q
^{3}
= 2apq.
Answer
1
Ruba Balu
Subject: Maths
, asked on 4/11/17
14th
Q14. Find the sum to n terms : 6 + 9 + 16 + 27 + ..................
Answer
1
Ruba Balu
Subject: Maths
, asked on 4/11/17
13th
Q13. Find the sum to n terms :
$\frac{1}{2\times 5}+\frac{{\displaystyle 1}}{{\displaystyle 5\times 8}}+\frac{{\displaystyle 1}}{{\displaystyle 8\times 11}}{+}^{....}............$
Answer
4
Ruba Balu
Subject: Maths
, asked on 4/11/17
12)
Q12). The sum of four numbers in G.P is 60 and the arithmetic mean of the first and the last is 18. Find the numbers.
Answer
2
Ruba Balu
Subject: Maths
, asked on 4/11/17
Find 4 numbers in GP in which the sum of the extreme terms is 112 and the sum of the middle terms is 48.
Answer
1
Ruba Balu
Subject: Maths
, asked on 4/11/17
The product of three numbers in AP is 224 and the largest number is 7 times the smallest. find the numbers.
Answer
1
Ruba Balu
Subject: Maths
, asked on 4/11/17
Solve this:
The sum of four number is A.P is 24 and the product of the square of extremes is 729. Find the numbers.
Answer
2
Ruba Balu
Subject: Maths
, asked on 4/11/17
The sum of the first 3 terms of a G.P is 7 and sum of their squares is 21. find the first 5 terms of the G.P.
Answer
1
Divya Mahesh
Subject: Maths
, asked on 28/10/17
Insert three numbers between 1 and 256 so that the resulting sequence is a G.P.
Answer
1
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Q15. If one A M 'a' and two GM' s p and q are inserted between any two given numbers, show thatp^{3}+q^{3}= 2apq.Q14. Find the sum to n terms : 6, 9, 16, 27...

Q.13. Find the sum of n terms: $12\times 5+15\times 8+18\times 11+.........$

middle terms is 48.

Q15. If one A M 'a' and two G M' s p and q are inserted between any two given numbers, show that p

^{3}^{ }+ q^{3}= 2apq.Q14. Find the sum to n terms : 6 + 9 + 16 + 27 + ..................

Q13. Find the sum to n terms : $\frac{1}{2\times 5}+\frac{{\displaystyle 1}}{{\displaystyle 5\times 8}}+\frac{{\displaystyle 1}}{{\displaystyle 8\times 11}}{+}^{....}............$

Q12). The sum of four numbers in G.P is 60 and the arithmetic mean of the first and the last is 18. Find the numbers.

Solve this:The sum of four number is A.P is 24 and the product of the square of extremes is 729. Find the numbers.