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m (→Microscopic: tweak) |
m (→Focus score: fix dimensions) |
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# Estimate that area in mm<sup>2</sup> (a). | # Estimate that area in mm<sup>2</sup> (a). | ||
:<math>fs = { n \over a } \times 4 \ mm</math> | :<math>fs = { n \over a } \times 4 \ mm^2</math> | ||
====Grading==== | ====Grading==== |
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