Subject: Maths, asked on 1/12/17

## Ncert class 11 pg 192 question 8 . As rhe value of root 3>1 how can sn be as shown n d photo plz reply asap

Subject: Maths, asked on 29/11/17

## Pl tell the answer and reason Q). Complete the series given below. 3, 7, 15, 35, 91, ? A. 99 B. 255 C. 258 D. 302 E. None of these

Subject: Maths, asked on 25/11/17

## Pls ans question no 2 ​Q2. If H1 , H2 ........., H2010 are "2010" harmonic means between a and b ($\ne$ a) , then value of  is equal to            (A) 2011                                                   (B) 2012          (C) 4020                                                    (D) 4024

Subject: Maths, asked on 25/11/17

## if a,b,c are the pth,qth,rth term respectively of a GP, then (q-r) log a + (r-p) log b + (p-q) log c is equal to (its a numerical based question)

Subject: Maths, asked on 25/11/17

## a,b,c are sides of a triangle and are in GP. if log a - log 2b, log 2b -log 3c and log 3c - log a are in AP then A)angle A must be obtuse      B) angle B must be obtuse  C) C=90 degree                     D) none of these pls give the full solution and not only the option

Subject: Maths, asked on 25/11/17

## if A be the AM and G be the GM between two numbers, show that the numbers are given by A + or -  sqrt (A^2 - G^2).

Subject: Maths, asked on 25/11/17

## Please ans question no 9

Subject: Maths, asked on 21/11/17

## if a,b,c are in AP and p is the AM between a and b, and q is the AM between b and c, show that b is the AM between p and q

Subject: Maths, asked on 18/11/17

## Q. Prove that Q. Let x = 1+ a+a2 + .... and y = 1+b+b2+..., where |a| $<$ 1 and  |b| ​$<$ 1. Prove that

Subject: Maths, asked on 18/11/17

## The number of terms common between the sequences 1,3,9,.....upto 90 terms and 1,5,9,..... upto 90 terms is ??

Subject: Maths, asked on 18/11/17

## In a triangle the lengths of the two larger sides are 10 and 9 units respectively. If the angles are in AP , then the length of the third side.

Subject: Maths, asked on 13/11/17

## how did that step occur. that -1 is also root.

Subject: Maths, asked on 12/11/17

## 20 ​Q20. Let a , b , c , d be in GP , then show that (a – b)2 , (b – c)2 , (c – d)2 are in GP.

Subject: Maths, asked on 12/11/17

## 18 ​Q18. Find the least value of n for which 1 + 3 + 32 + .... ...... ....... + + 3 n – 1 > 1000 .

Subject: Maths, asked on 12/11/17

## 16. If the terms of an AP are in GP, prove that the common difference is $\frac{q-r}{p-q}$

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