Question

कन्वरसेशन बिटवीन करोना वायरस एंड डॉक्टर इन हिंदी​

Answer 1

Explanation:

{\bigstar}★ SOLUTION{\bigstar}★

➥(a-b)²-(a+b) ²

IDENTITY USED :

\boxed{\sf{ (a+b)² = a² + b² +2ab }}

(a+b)²=a²+b²+2ab

\boxed{\sf{(a-b)² = a² + b² - 2ab }}

(a−b)²=a²+b²−2ab

➥(a-b)²-(a+b) ²

➥(a² + b² - 2ab) -( a² + b² +2ab)

➥a² + b² - 2ab - a² - b² -2ab

➥-2ab - 2ab

➥-4ab

◆ ━━━━━━━━❪✪❫━━━━━━━━ ◆

ALGEBRAIC IDENTITIES :

IDENTITY I:

(a + b)² = a² + 2ab + b²

IDENTITY II:

(a – b)² = a² – 2ab + b²

IDENTITY III:

a² – b²= (a + b)(a – b)

IDENTITY IV:

(x + a)(x + b) = x² + (a + b) x + ab

IDENTITY V:

(a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca

IDENTITY VI:

(a + b)³ = a³ + b³ + 3ab (a + b)

IDENTITY VII:

(a – b)³ = a³ – b³ – 3ab (a – b)

IDENTITY VIII:

a³ + b³ + c³ – 3abc = (a + b + c)(a² + b² + c² – ab – bc – ca)