Question

Ajuda!! Se alguém souber 1) Qual das alternativa abaixo é solução sen x = 2m - 5. *



A

B

C

D

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Answer 1

$\large\boxed{\begin{array}{l}\sf -1\leqslant2m-5\leqslant1\\\sf-1+5\leqslant2m\leqslant1+5\\\sf4\leqslant2m\leqslant6\\\sf\dfrac{4}{2}\leqslant m\leqslant\dfrac{6}{2}\\\\\sf 2\leqslant m\leqslant3\\\sf S=\{m\in\mathbb{R}/2\leqslant m\leqslant3\}\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~c}}}}\end{array}}$