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[" When "a=0,b=-1" ,find the value of th...

[" When "a=0,b=-1" ,find the value of the given expressions: "],[[" (1) "2a+2b," (ii) "2a^(2)+b^(2)+1," (iii) "2a^(2)b+2ab^(2)+ab]],[" (iv) "a^(2)+ab+2]

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