Xolove24
Xolove24
06-12-2021
Mathematics
contestada
if a+b+c=0, prove that a^2 - b^2 - c^2 = 2bc
Respuesta :
ranjot0143
ranjot0143
06-12-2021
Step-by-step explanation:
a+b+c=0
b+c=(-a) (SQUARING both the sides)
(b+c)²=(-a)²
(b²+c²+2bc)=a²
2bc=a²-b²-c²
HENCE PROVED
a²
-
b
²
-
c
²
=
2
b
c
Answer Link
puttinirajan
puttinirajan
11-12-2021
Step-by-step explanation:
........ ............... .......
Answer Link
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