dy/dx = 4x + 5
dy = (4x + 5)dx
so for your given data
dy= (20+5)(.1) = 2.5
so the other one the same way
let y=2x^2 +5x+3
Find the differential dy when x= 5 and dx = 0.1
Find the differential dy when x= 5 and dx = 0.2
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5 answers