47- to pg U, par, p q + pc pra 3. Add the following. (i) ab – bc, bc – ca, ca – ab (iii) 2p-q2 – 3pq + 4,5 + 7pq - 3n2a2
Answers
Answered by
0
Answer:(i)
Given are 3 terms i.e.,
=ab−bc+bc−ca+ca−ab
=ab−ba+bc−bc+ca−ca
=0
(ii)
Three terms i.e,
=a−b+ab+b−c+bc+c−a+ac
=a−a+b−b+c−c+ab+bc+ca
=ab+bc+ac
(iii)
Adding the given two terms,
=2p
2
q
2
−3pq+4+5+7pq−3p
2
q
2
=2p
2
q
2
−3p
2
q
2
+7pq−3pq+5+4
=−p
2
q
2
+4pq+9
(iv)
Addition of the four terms results in
=l
2
+m
2
+n
2
+m
2
+l
2
+n
2
+2lm+2mn+2nl
=2l
2
+2m
2
+2n
2
+2(lm+mn+nl)
=2(l
2
+m
2
+n
2
+lm+mn+nl)
Step-by-step explanation:
Answered by
0
Answer:
I Ans : ab–bc
bc–ca
ca–ab
We put like terms below like terms
ab–bc
+bc–ca
–ab. +ca
______________
0
______________
so required sum =0
Similar questions