Answer :

Taking LHS,

Applying R1 R1 – R2, we get





[(a2 – b2) = (a – b)(a + b)]


Taking (a – 1) common from the first row, we get



Applying R2 R2 – R3, we get





Taking (a – 1) common from the second row, we get



Now, expanding along C3, we get


= (a – 1)2 [1{(a + 1) – 2}]


= (a – 1)2 [a + 1 – 2]


= (a – 1)3


= RHS


Hence, LHS = RHS


Hence Proved


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 properties Mathematics - Board Papers

Using properties Mathematics - Board Papers

Using properties Mathematics - Board Papers

Prove the followiMathematics - Board Papers