Q. 365.0( 2 Votes )

If A is a square

Answer :

Expansion of the given expression,


A3 – I3 + 3AI2 – 3A2I + A3 + I3 + 3AI2 + 3A2I – 7A


2A3 – 7A + 6AI2


2A2A – 7A + 6A


2AI – A {A2 = I}


2A – A


A


Option (A) is the answer.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Using matrices, sMathematics - Board Papers

If possible, usinMathematics - Exemplar

If possible, usinMathematics - Exemplar

Using matrices, sMathematics - Board Papers

Prove that <span Mathematics - Board Papers

Find the value ofMathematics - Board Papers

If A is a <span lMathematics - Board Papers