Please explain full concept of IDENTITIES ? Class - 8th ICSE.
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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
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Step-by-step explanation:
nice bio !
In biology, immunity is the capability of multicellular organisms to resist harmful microorganisms. Immunity involves both specific and nonspecific components. The nonspecific components act as barriers or eliminators of a wide range of pathogens irrespective of their antigenic make-up.
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