Subject: Maths, asked on 26/7/12

## if a2, b2,c2 are in a A.P .then prove that the following are also in A.P (i) 1/b+c ,1/c+a ,1/a+b (ii) a/b+c , b/a+c ,c/b+a

Subject: Maths, asked on 29/10/12

## Find the sum to n terms of the series :-  5 + 11 + 19 + 29 + 41 +..........

Subject: Maths, asked on 25/10/14

## Find the sum of integers from 1 to 100 that are divisible by 2 or 5.

Subject: Maths, asked on 14/10/10

## a thief runs away from a police station with a uniform speed of100 m per min. after a minute a policeman runs behind him to catch. he goes at a speed of 100 m in 1st min and increases his speed by 10 m each succeeding min. after how many min, the policeman catch the thief?

Subject: Maths, asked on 4/11/12

## If the pth, qth and rth terms of a GP be a, b, c respectively, prove that a^(q-r).b^(r-p).c^(p-q)=1; where ^=raised to the power

Subject: Maths, asked on 30/10/10

## The third term of a GP is 4 , find the product of its first five terms .( answer = 1024 )

Subject: Maths, asked on 22/3/15

## If a2, b2, c2, are in AP, then show that a/b+c, b/c+a, c/a+b are in AP.

Subject: Maths, asked on 1/3/13

## if (m+1)th term of an AP is twice the n+1th term, prove that (3m+1)th term is twice the (m+n+1)th term.please answer ASAP, exam tmrw.

Subject: Maths, asked on 9/5/12

## If 7 times the 7th term of an A.P. is equal to 11 times the 11th term,show that 18th term of A.P. is 0.

Subject: Maths, asked on 11/5/12

## The sum of 11 terms of an AP whose middle term s 30 is(1) 320 (2)330 (3)340 (4)350

Subject: Maths, asked on 9/2/12

## Sum the series: 1+3+7+15+31+............to n terms.

Subject: Maths, asked on 21/12/13

## If a, b , c are in G.P, and x, y be the arithmetic means of a, b and b, c respectively, prove that (i) a/x+c/y=2 (ii)1/x + 1/y= 2/b

Subject: Maths, asked on 7/12/14

## If first term ,second , and last term of an A.P be a ,b , c, respectively . Then show that the sum is (b+c-2a) (a+c) / 2(b-a) .

Subject: Maths, asked on 21/8/15

## how many terms of the sequence 18,16,14......should be taken so that their sum is  zero.

Subject: Maths, asked on 30/10/13

## if pth, qth, rthand sth terms of an A.P. are in G.P.,show that (p-q),(q-r) and (r-s) are also in G.P.

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