Erichooi
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 14
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Questions Asked

Erichooi:
Group Title
Why elementary row operation do not affect row space of a matrix?
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Erichooi:
Group Title
What is the relationship between force and potential energy?
 updated one year ago
 10 replies
 3 Medals
Mathematics

Erichooi:
Group Title
This is matrix in 3x3 in row.
A={(1,2,3) , (4,5,6) , (1,2,3)}
B={(4,5,6) , (1,2,3) , (7,8,9)}
…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

Erichooi:
Group Title
Given that tan a = sqrt5 / 2 , where a is an obtuse angle, find the value of sin a/2 without using calculator
 updated one year ago
 12 replies
 No Medals Yet
Mathematics

Erichooi:
Group Title
loga xy^3=9
loga x^2y=8
Find value of loga (xy)^(1/2)
…
 updated one year ago
 9 replies
 3 Medals
Mathematics

Erichooi:
Group Title
Find the values of x for (x+3)(x1)/(x+2)(x2)>and equal to 0
 updated one year ago
 1 reply
 1 Medal
Mathematics

Erichooi:
Group Title
find values of x for 3x+1<1.
 updated one year ago
 7 replies
 1 Medal
Mathematics

Erichooi:
Group Title
The polynomial P(x)=x^4  4x^3 + hx^2  6x + 2 has a factor of (xm)^2 . Find value of m and h
 updated one year ago
 30 replies
 2 Medals
Mathematics

Erichooi:
Group Title
The polynomial P(x)=x^4  4x^3 + hx^2  6x + 2 has a factor of (xm)^2 . Find value of m and h
 updated one year ago
 No Medals Yet
Mathematics

Erichooi:
Group Title
A polynomial has remainder of 9 when it is divided by (x+2) and remainder of 1 when it is divided by (x3) find remainder when it is divide…
 updated one year ago
 17 replies
 1 Medal
Mathematics

Erichooi:
Group Title
The remainder obtained when x^4 + 3x^2  2x + 2 is divided by ( x+b ) is the square of that remainder obtained when x^2  3 is divided by ( …
 updated one year ago
 No Medals Yet
Mathematics

Erichooi:
Group Title
Find value of k and h if (x+1) and (x+2) are factors of x^3 + hx^2 + kx + 4
…
 updated one year ago
 5 replies
 1 Medal
Mathematics

Erichooi:
Group Title
It is given that A is an obtuse angle and cosA=sqrt5/3.Without using calculator,find the value of cos 3A
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Erichooi:
Group Title
Orbital n=1 has higher energy or n=2?
…
 updated one year ago
 No Medals Yet
Mathematics

Erichooi:
Group Title
First five ionization energy of element X are
578,1817,2745,11578,14831
X found in which group of periodic table and why?
 updated one year ago
 1 reply
 2 Medals
Mathematics

Erichooi:
Group Title
Can anyone explain to me how to use log and e^x?
 updated one year ago
 13 replies
 2 Medals
Mathematics

Erichooi:
Group Title
Why electric field strength and work done is scalar quantity?
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Erichooi:
Group Title
2^a=5^b=20^c.Express c in term of a and b.
 updated one year ago
 2 replies
 2 Medals
Mathematics

Erichooi:
Group Title
Why energy is absorbed when electron moves from lower orbital to higher orbital?
 updated one year ago
 7 replies
 6 Medals
Mathematics