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प्रश्न
Given that f(x) = `{{:(sqrt(x - 1), x ≥ 1),(4, x < 1):}` Find f(3)
उत्तर
f(x) = `sqrt(x - 1)`, f(x) = 4
f(3) = `sqrt(3 - 1)`
= `sqrt(2)`
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