Question

3cos60°-2seno90°+tg45

Answer 1

Explicação passo-a-passo:

$\cos60° = \frac{1}{2}$

$\sin90° = 1$

$\tan45° = 1$

$3 \times \frac{1}{2} - 2 \times 1 + 1 = 0.5$ou 1/2