Engineering mathematics
English
متوسط
Test your knowledge in matrices
الوصف
30
سؤالًا
1 د
للسؤال
6:18
متوسط ​​الزمن
3٫0
نتيجة المسابقة
200
مشارك
5 تعليقات
Noble Gopher
There are typing error in some of the questions
Merry Elk منشئ الاختبار
Can you please mention question number
Merry Elk منشئ الاختبار
Matrix doesnot has value. Determinant only has value
Bright Parrot
On Question 1 (if its not shuffled) it says :

Matrix has a value
A.True
B.False
C.Depends on matrix
D. None of above

Your answer is false :

but from source https://en.wikipedia.org/wiki/Matrix_(mathematics) Matrix is defined as :

A symmetric n×n-matrix A is called positive-definite if the associated quadratic form
f (x) = xTA x
has a positive value for every nonzero vector x in Rn. If f (x) only yields negative values then A is negative-definite; if f does produce both negative and positive values then A is indefinite.

Doesn't this clash?


Thank you and i appreciated your word Good luck.
Merry Elk منشئ الاختبار
Positive Definite is something different.
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