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If R is the total resistance of three resistors, connected in parallel, with resistances R1, R2,...

If R is the total resistance of three resistors, connected in parallel, with resistances R1, R2, R3, then

1
R

=

1
R1

+

1
R2

+

1
R3

.

If the resistances are measured in ohms as R1 = 40 Ω, R2 = 25 Ω, and R3 = 32 Ω, with a possible error of 0.5% in each case, estimate the maximum error in the calculated value of R. (Round your answer to three decimal places.)

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