hello! please someone help me,:smile: here is my question.
Find the components of d=(3,5,7) along the directions of u, v and w
consider: u=1/3(2,2,-1) v=1/3(2,-1,2) w=1/3(-1,2,2)
I don't know where to start, I need some ideas to solve this
thanx:smile:
Hello guys I've asked to prove following equation on determinants, here it is;
Using the properties of determinants & without expanding prove that,
see attachment,
I need to verify my answer can some one tell me whether is this correct or not?:smile:
Express \left(\begin{array}{cccc}
6 & 1 & 5\\
-2 & -5 & 4\\
-3 & 3 & -1\
end{array}
\right) as the sum of the symmetric and skew symmetric matrices.
I did this following way
Consider symmetric metric as "A"
then;
A = \left(\begin{array}{cccc}
6 & 1 & 5\\
1 & -5 & 4\\
5 & 4 & -1\
\end{array}...
Given that a=(a1,a2,a3) and b=(b1,b2,b3) by applying the Pythagoras rule, Prove that a1b1+a2b2+a3b3=0 if a and b perpendicular
The Scalar product a.b = |a||b|CosQ -------------(1)
if two vectors are perpendicular; Q=90degrees
then CosQ=0;
from (1)
a.b=0
(a1,a2,a3).(b1,b2,b3)=0...
R1 = 120ohms
R2 = 820ohms
R3 = 2200ohms
E1 = 15v
E2 = 9v
What is the potential difference between points "B" and "C"?
(I've attached the circuit diagram)
Homework Statement
Homework Equations
The Attempt at a Solution
Homework Statement
Homework Equations...