Question

hello plz answer.its urgent​

Answer 1

Step-by-step explanation:

a2+b2 is not equal to 0 means

that at least one out of a or. b is not equal to zero

why so ? to answer this question continue your reading

as every square is positive a2 and b2 both are positive and for their sum to become 0 both should be equal to zero, if their sum is not not equal to zero, at least one of them is a non zero number

it is significant in linear equation in two variables because if both the coefficients are zero then there is no variable so it would not be an equation so at least one out of a or b should not be 0

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