y=25 AND y = 1/25 since the +/- sign should be consideredCan someone solve this pls?
log5y= 4logy5
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
y=25 AND y = 1/25 since the +/- sign should be consideredCan someone solve this pls?
log5y= 4logy5
its in the addendum of book 1in which math book is the chapter of symmetry included? i'm talking about D1, D2, D3 or D4?
can you tell me the paper and its year and its question number!!I tried to solve this question, I did the Part (i) and obtained the correct answer, but I cannot get the answer to Part (ii), my question is that
How is X equal to (A + I)-1 or whatever is in the question, please can anyone explain it . What is happening in this part? I am not getting it.
Question:
View attachment 18935
Answer:
View attachment 18936
Can we use xtra sheet in statistics exam and if e have used than what would happenRe: O'level Maths, Addmaths and Statistics help available he
Agreed with hamidali391!
Extra sheet is not allowedC
Can we use xtra sheet in statistics exam and if e have used than what would happen
Very tough question!I tried to solve this question, I did the Part (i) and obtained the correct answer, but I cannot get the answer to Part (ii), my question is that
How is X equal to (A + I)-1 or whatever is in the question, please can anyone explain it . What is happening in this part? I am not getting it.
Question:
View attachment 18935
Answer:
View attachment 18936
from the equation AX+X=B, we remove the x outside to get: X(A+I)=BI tried to solve this question, I did the Part (i) and obtained the correct answer, but I cannot get the answer to Part (ii), my question is that
How is X equal to (A + I)-1 or whatever is in the question, please can anyone explain it . What is happening in this part? I am not getting it.
Question:
View attachment 18935
Answer:
View attachment 18936
Thank alot, Yeah I hve understoodfrom the equation AX+X=B, we remove the x outside to get: X(A+I)=B
plz note that in matrix when there is nothing in front of a matrix we assume it has the identity matrixx in front coz if we multiply the identity matrix by the matrix we get the same matrix.(its just like if we have a variable X the number before it is 1 ), the I in the brackets above represents the identity matrix. by the equation i have formed if we make x the SOF, we get X=B/(A+I), but in matrix division doesn't exist, so if we have to make x the SOF, we multiply B by (A+I)-1, and we get the answeras x=(4 and below 2) plz let me know whether or not u have understood
I got u but i have one question:from the equation AX+X=B, we remove the x outside to get: X(A+I)=B
plz note that in matrix when there is nothing in front of a matrix we assume it has the identity matrixx in front coz if we multiply the identity matrix by the matrix we get the same matrix.(its just like if we have a variable X the number before it is 1 ), the I in the brackets above represents the identity matrix. by the equation i have formed if we make x the SOF, we get X=B/(A+I), but in matrix division doesn't exist, so if we have to make x the SOF, we multiply B by (A+I)-1, and we get the answeras x=(4 and below 2) plz let me know whether or not u have understood
even i did not understood that part!! maybe thats another method of doing it!!I got u but i have one question:
If we multiply B By (A+I)-1 , how can we say that X is equal to (A+1)-1?
Dude, i did it till that step but after that i m confused abt how is it equal to X :Seven i did not understood that part!! maybe thats another method of doing it!!
I did not get ur inverse thingy...i have this question g(x)=x2-xand they have asked for its inverse of g(6)
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now