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Grade: 12
        
If x=55 y=65 z=175 then what is the value of xy+yz+zx?
8 months ago

Answers : (1)

Puneet
16 Points
							55×65+65×175+175×555(11×13)+5(13×35)+5(35×11)5{(11×13)+(13×35)+(35×11)}5{143+455+385} = 5{983} =4915
						
8 months ago
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