The approximate value of function f(x + δx, y + δy) is? – McqOptions

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1.	The approximate value of function f(x + δx, y + δy) is?
A.	f + ∂f⁄∂x dx + ∂f⁄∂y dy
B.	∂f⁄∂x dx + ∂f⁄∂y dy
C.	f – ∂f⁄∂x dx + ∂f⁄∂y dy
D.	∂f⁄∂x dx – ∂f⁄∂y dy
Answer» B. ∂f⁄∂x dx + ∂f⁄∂y dy

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