Question

O menor valor de 3/5+ senx , para x real é:

Answer 1

$\displaystyle \underline{\text{O menor valor de}}: \\\\\ \frac{3}{5}+\text{sen x } \ , \ \text x \in\mathbb{R} \\\\\\ \underline{\text{O menor valor que o seno pode assumir {\'e} -1, ent{\~a}o}}: \\\\\\ \frac{3}{5} + (-1) \ \to\ \frac{3}{5}-1\\\\\\\ \frac{3-5}{5} \\\\\\ \text{Portanto o menor valor {\'e}} \\\\\ \huge\boxed{\frac{-2}{5} \ = -0,4\ }\checkmark$