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Andrea

Estudos Gerais • 05/17/2025

2- O valor de sen $\frac{\pi}{4}$ + cos $\frac{\pi}{4}$ + co...

2- O valor de sen π4\frac{\pi}{4} + cos π4\frac{\pi}{4} + cos(π2+π4)\left(\frac{\pi}{2} + \frac{\pi}{4}\right) é:

a) 2\sqrt{2}

b) 22\frac{\sqrt{2}}{2}

c) 322\frac{3\sqrt{2}}{2}

d) 222\sqrt{2}

e) n.r.a

2- O valor de sen $\frac{\pi}{4}$ + cos $\frac{\pi}{4}$ + cos$\left(\frac{\pi}{2} + \frac{\pi}{4}\right)$ é: a) $\sqrt{2}$ b) $\frac{\sqrt{2}}{2}$ c) $\frac{3\sqrt{2}}{2}$ d) $2\sqrt{2}$ e) n.r.a
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