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Install NowNeha Vilasi
Aug 19, 2013
If x +1 =3 , then find the value of x6+1.
x x6
x x6
Sunitha
Aug 19, 2013
Factorise: x4 +x2 +1
Raj kishore patro
Jul 10, 2013
x3 +1/x3 = 110,then x+1/x =
Mohammed furqaan Hussain
Aug 23, 2013
If a2+b2+c2-ab-bc-ca=0,prove that a=b=c
Meghna deshnur
Aug 5, 2013
Sir,
I have a doubt regarding this question, kindly tell me whether the answer for the question given below is correct?
Q) x3 - 3x2 - 9x - 5
Ans) p(x) = x3 - 3x2 - 9x - 5
Factors of 5 = 1,5,-1,-5
p(1) = 13 - 3 x (1)2 - 9 x (1) - 5
= 1 -3 - 9 - 5
= 1 - 17 = - 16 ≠0
p(-1) = (-1)3 x 3 x (-1)2 - 9 x (-1) -5
= -1 - 3 + 9 - 5 = -9 + 9 = 0
p(-1) =0
∴ (x+1) is a factor of p(x)
p(x) ÷ (x+1)
x3 - 3x2 - 9x - 5 ÷ x + 1
= x2 - 4x - 5
x2 - 4x - 5
x2 - 5x + 1x - 5
= x ( x - 5) + 1 ( x - 5)
= ( x - 5) ( x + 1)
Sir,
I have a doubt regarding this question, kindly tell me whether the answer for the question given below is correct?
Q) x3 - 3x2 - 9x - 5
Ans) p(x) = x3 - 3x2 - 9x - 5
Factors of 5 = 1,5,-1,-5
p(1) = 13 - 3 x (1)2 - 9 x (1) - 5
= 1 -3 - 9 - 5
= 1 - 17 = - 16 ≠0
p(-1) = (-1)3 x 3 x (-1)2 - 9 x (-1) -5
= -1 - 3 + 9 - 5 = -9 + 9 = 0
p(-1) =0
∴ (x+1) is a factor of p(x)
p(x) ÷ (x+1)
x3 - 3x2 - 9x - 5 ÷ x + 1
= x2 - 4x - 5
x2 - 4x - 5
x2 - 5x + 1x - 5
= x ( x - 5) + 1 ( x - 5)
= ( x - 5) ( x + 1)
But finally x3 - 3x2 - 9x - 5 = ( x + 1)( x + 1)( x - 5)
Neha Vilasi
Aug 31, 2013
If a+b+c=0, then find the value of a2/bc+b2/ca+c2/ab and this time please explain it properly because last time I could not understand.
Smritishraddha suresh
Aug 27, 2013
if x4+1/x4 =119 then find x3-1/x3
Meghna deshnur
Jul 26, 2013
If x + y + z = 8 and xy + yz + zx = 20 find the value of x3 + y3 + z3 - 3xyz.
Given x + y + z = 8 and xy + yz + zx = 20
Consider, x + y + z = 8
Squaring on both sides, we get
(x + y + z)2 = 82
x2 + y2 + z2 +2(xy + yz +zx) = 64
...
Sunil dhikle
Aug 8, 2013
if 2 to the power X = 3 to the power Y = 6 to the power - Z. Then prove 1/X + 1/Y + 1/Z = 0
Aakash Prakash
Sep 13, 2013
Prove that (a+b+c)3-a3-b3-c3 = 3(a+b)(b+c)(c+a)
Neha Vilasi
Aug 19, 2013
If x +1 =3 , then find the value of x6+1.
x x6
x x6
Sunitha
Aug 19, 2013
Factorise: x4 +x2 +1
Raj kishore patro
Jul 10, 2013
x3 +1/x3 = 110,then x+1/x =
Mohammed furqaan Hussain
Aug 23, 2013
If a2+b2+c2-ab-bc-ca=0,prove that a=b=c
Meghna deshnur
Aug 5, 2013
Sir,
I have a doubt regarding this question, kindly tell me whether the answer for the question given below is correct?
Q) x3 - 3x2 - 9x - 5
Ans) p(x) = x3 - 3x2 - 9x - 5
Factors of 5 = 1,5,-1,-5
p(1) = 13 - 3 x (1)2 - 9 x (1) - 5
= 1 -3 - 9 - 5
= 1 - 17 = - 16 ≠0
p(-1) = (-1)3 x 3 x (-1)2 - 9 x (-1) -5
= -1 - 3 + 9 - 5 = -9 + 9 = 0
p(-1) =0
∴ (x+1) is a factor of p(x)
p(x) ÷ (x+1)
x3 - 3x2 - 9x - 5 ÷ x + 1
= x2 - 4x - 5
x2 - 4x - 5
x2 - 5x + 1x - 5
= x ( x - 5) + 1 ( x - 5)
= ( x - 5) ( x + 1)
Sir,
I have a doubt regarding this question, kindly tell me whether the answer for the question given below is correct?
Q) x3 - 3x2 - 9x - 5
Ans) p(x) = x3 - 3x2 - 9x - 5
Factors of 5 = 1,5,-1,-5
p(1) = 13 - 3 x (1)2 - 9 x (1) - 5
= 1 -3 - 9 - 5
= 1 - 17 = - 16 ≠0
p(-1) = (-1)3 x 3 x (-1)2 - 9 x (-1) -5
= -1 - 3 + 9 - 5 = -9 + 9 = 0
p(-1) =0
∴ (x+1) is a factor of p(x)
p(x) ÷ (x+1)
x3 - 3x2 - 9x - 5 ÷ x + 1
= x2 - 4x - 5
x2 - 4x - 5
x2 - 5x + 1x - 5
= x ( x - 5) + 1 ( x - 5)
= ( x - 5) ( x + 1)
But finally x3 - 3x2 - 9x - 5 = ( x + 1)( x + 1)( x - 5)
Neha Vilasi
Aug 31, 2013
If a+b+c=0, then find the value of a2/bc+b2/ca+c2/ab and this time please explain it properly because last time I could not understand.
Smritishraddha suresh
Aug 27, 2013
if x4+1/x4 =119 then find x3-1/x3
Meghna deshnur
Jul 26, 2013
If x + y + z = 8 and xy + yz + zx = 20 find the value of x3 + y3 + z3 - 3xyz.
Given x + y + z = 8 and xy + yz + zx = 20
Consider, x + y + z = 8
Squaring on both sides, we get
(x + y + z)2 = 82
x2 + y2 + z2 +2(xy + yz +zx) = 64
...
Sunil dhikle
Aug 8, 2013
if 2 to the power X = 3 to the power Y = 6 to the power - Z. Then prove 1/X + 1/Y + 1/Z = 0
Aakash Prakash
Sep 13, 2013