Question

in first sum.find the velue of a &b
2) in 2th sum use of simplification mathod​

Answer 1

Step-by-step explanation:

(1). a=1 , b= 1

a^2 + 2ab + b^2

(2)^2 +2(2)(1)+ (1)^2

= 4+4+1

ii) 3° ×5′ ÷ 4°

=1×5÷1. [a°=1]

=5

hope it helps

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