Work Step by Step
let T be normal body temperature |T-37.2|$\leq$0.3 T-37.2$\leq$0.3 and T-37.2$\geq$-0.3 T$\leq$37.5 and T$\geq$36.9 => 37.5$\geq$T$\geq$36.9
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