Simplify: (87  87 + 61  61 - 2  87  61)

খ) 676 — Solution: দেওয়া আছে, 87  87 + 61  61 - 2  87  61 = (87 - 61) 2 [ As. a 2 + b 2 - 2ab = (a - b) 2 ] = (26) 2 = 676

Simplify: (87  87 + 61  61 - 2… | Answer

Subject

Bank Exam

Topic

Uttara Bank Ltd – Probationary Officer - 2017

ক)

660

খ)

676

গ)

696

ঘ)

706

Solution: দেওয়া আছে, 87

\times

87 + 61

\times

61 - 2

\times

\times

61 = (87 - 61) 2 [ As. a 2 + b 2 - 2ab = (a - b) 2 ] = (26) 2 = 676

\div

\sqrt {248 + \sqrt {52 + \sqrt {144} } }