1.

यदि `A=[(a,b),(-b,a)], B=[(-a,b),(-b,-a)]` तब `A + B` ज्ञात करो।

Answer» `A+B=[(a,b),(-b,a)]+[(-a,b),(-b,-a)]`
`=[(a-a,b+b),(-b-b,a-a)]=[(0,2b),(-2b,0)]`


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