3 and 4 .Determinants and Matrices
easy

यदि  $A$ , कोटि $3 $ घात का वर्ग आव्यूह हो, तो कौन सा कथन सही है (जहाँ $I$ मात्रक आव्यूह है) 

A

$det$ $( - A) = - \det A$

B

$det$ $A = 0$

C

$det$ $(A + I) = 1 + \det A$

D

$det$ $2A = 2\det A$

Solution

(a) चूँकि $det$ $( – A) = {( – 1)^3}\det A = – \det A$.

Standard 12
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.