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Amitesh Kumar
Subject: Maths
, asked on 10/8/17
Solve this:
Answer
1
Lioncub
Subject: Maths
, asked on 29/7/17
Prove by using PMI:
1+5+9+..+(4n-3) = n(2n-1) for all natural numbers n
Answer
3
Lioncub
Subject: Maths
, asked on 29/7/17
Prove using PMI:
1+2+22+...+2^n = 2^(n+1) -1 for all natural numbers n.
Answer
1
Arjun Singh
Subject: Maths
, asked on 28/7/17
1+2+3+4+...+n=1/2n(n+1) induction
Answer
1
Ananya Pandey
Subject: Maths
, asked on 25/7/17
Questions 4, 5,6
Answer
1
Anika Kapoor
Subject: Maths
, asked on 19/7/17
Pls prove Q.15
Answer
0
Anika Kapoor
Subject: Maths
, asked on 19/7/17
Pls prove Q.15
Answer
1
Anika Kapoor
Subject: Maths
, asked on 8/7/17
Please tell the solutions to Eg. 2 & 5
Answer
1
Dilna
Subject: Maths
, asked on 6/7/17
using principle of mathematical induction prove that 4^n-3n-1 is a multiple of 9
Answer
1
Dilna
Subject: Maths
, asked on 4/7/17
prove by PMI that 2+6+18+......+2.3^(n-1) = (3^n)-1
Answer
1
Akchunya Chanchal
Subject: Maths
, asked on 25/6/17
prove by induction (n+3)
2
<=2
n+3
Answer
1
Siraj
Subject: Maths
, asked on 18/6/17
Prove that (1+x)^n greater than or equal to (1+nx), for all natural number n, where x > -1. I did not understand where the kx^2 went (last step) in the answers given by the experts. EXPERTS PLEASE HELP
Answer
2
Raqeeb ..
Subject: Maths
, asked on 10/6/17
1/2.5+ 1/5.8 +...+ upto n terms = n/6n+4
Answer
1
Yashaswi Agrawal
Subject: Maths
, asked on 17/5/17
If n∈N and (2.1+1) + (2.2 + 1) + (2.3 + 1) + ... + (2.n + 1) = n
2
+ 2n + 5 is true for n=m, then prove that it is also true for n=m+1. Can we conclude that it is true for all n∈N ?
Answer
1
Pranjal
Subject: Maths
, asked on 29/4/17
solve 28 step by step
28
.
1
×
1
!
+
2
×
2
!
+
3
×
3
!
+
.
.
.
+
n
×
n
!
=
n
+
1
!
-
1
for
all
N
∈
N
Answer
1
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What are you looking for?
1+5+9+..+(4n-3) = n(2n-1) for all natural numbers n
1+2+22+...+2^n = 2^(n+1) -1 for all natural numbers n.
1+2+3+4+...+n=1/2n(n+1) induction