Find the product using identity.862-142 here both the 2 are square eg

1.	Find the product using identity.862-142 here both the 2 are square eg 86 ka square and 14 ka square
Answer» Step-by-step explanation: DECOMPOSING the given NUMBER, ⇒ 999=1000−1 ---- ( 1 ) Here, a=1000 and b=1 Squaring both the SIDES of ( 1 ), ⇒ (999)2=(1000−1)2 =(1000)2−2(1000)(1)+(1)2 [ (a−b)2=a2−2ab+b2 ] =1000000−2000+1 =998001 ∴ (999)2=998001

Find the product using identity.862-142 here both the 2 are square eg 86 ka square and 14 ka square

Answer»

Step-by-step explanation:

DECOMPOSING the given NUMBER,

⇒ 999=1000−1 ---- ( 1 )

Here, a=1000 and b=1

Squaring both the SIDES of ( 1 ),

⇒ (999)2=(1000−1)2

=(1000)2−2(1000)(1)+(1)2 [ (a−b)2=a2−2ab+b2 ]

=1000000−2000+1

=998001

∴ (999)2=998001