Q. 145.0( 1 Vote )

Using properties

Answer :

To prove:


LHS


R1 R1 + R2 + R3




C2 C2 − C1 and C3 C3 − C1




= 3(x+y)(2y2+y2)


= 9y2(x+y) = RHS


Hence, Proved.


OR


Given: and CD − AB = 0


Let,





2a + 5c = 3 ……(i)


2b + 5d = 0 ……(ii)


3a + 8c = 43 ……(iii)


3b + 8d = 22 ……(iv)


2(iii) − 3(i) = c = 77 a = −191


2(iv) − 3(ii) = d = 44 b = −110



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