Question

Growmoretreestoreducepollution.’Writeanarticleinabout150-200wordsonthetopicgiven

aboveforyourschoolmagazine.​

Answer 1

Answer:

ANSWER

a+b+c=0

a=−b−c ..........(1)

(a+b+c)

2

=0

a

2

+b

2

+c

2

+2(ab+bc+ca)=0

K(a

2

−bc)+2(ab+bc+ca)=0

2(ab+bc+ca)=−K(a(−b−c)−bc)

⟹2(ab+bc+ca)=K(ab+bc+ca)

⟹K=2