Question 3-iv- Add the following- -iv- nbsp-l -2- m- nbsp-2- m- nbsp-2- n- nbsp-2- n- nbsp-2- l- nbsp-2-2lm -2mn-2nl

Name: NCERT - Grade 08 - Mathematics - Algebraic Expressions and Identities - Q03_4
Uploaded: 2022-07-04T10:36:42+05:30
Description: (iv) l^ nbsp;2+ m ^2, m^ nbsp;2+ n^ nbsp;2, n^ nbsp;2+ l^ nbsp;2, 2lm +2mn+2nl Sum = l^2+ m ^2+m^2+n^2+l^2+n^2+2ml+2mn+2nl (adding like terms) H ...

(iv) l^ nbsp;2+ m ^2, m^ nbsp;2+ n^ nbsp;2, n^ nbsp;2+ l^ nbsp;2, 2lm +2mn+2nl Sum = l^2+ m ^2+m^2+n^2+l^2+n^2+2ml+2mn+2nl (adding like terms) H ...

Question 3(iv...

Question

Question 3(iv)
Add the following:
(iv) $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l$

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Solution

(iv) $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2}, 2 l m + 2 m n + 2 n l$
$S u m = l^{2} + m^{2} + m^{2} + n^{2}$ $+ l^{2} + n^{2} + 2 m l + 2 m n + 2 n l (a d d i n g l i k e t e r m s)$

Hence, the sum is
$2 (l^{2} + m^{2} + n^{2} + l m + m n + n l)$

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Q. Question 3(iv)
Add the following:
(iv)

l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l

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Add the following:
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l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l

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l^{2} + m^{2} + m^{2} + n^{2} + n^{2} + l^{2} + 2 l m + 2 m n + 2 n l

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Coefficient

Standard VI Mathematics

Question 3(iv) Add the following: (iv) l2+m2,m2+n2,n2+l2+2lm+2mn+2nl

(iv) l2+m2,m2+n2,n2+l2,2lm+2mn+2nl Sum = l2+m2+m2+n2+l2+n2+2ml+2mn+2nl (adding like terms) Hence, the sum is ​2(l2+m2+n2+lm+mn+nl)

Question 3(iv)
Add the following:
(iv) $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l$

(iv) $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2}, 2 l m + 2 m n + 2 n l$
$S u m = l^{2} + m^{2} + m^{2} + n^{2}$ $+ l^{2} + n^{2} + 2 m l + 2 m n + 2 n l (a d d i n g l i k e t e r m s)$

Hence, the sum is
$2 (l^{2} + m^{2} + n^{2} + l m + m n + n l)$