amthibault amthibault

23-10-2020
Mathematics

contestada

Which expression is equal to -1? A. cot π/4 B. sin π/2 C. sin 3π/2 D. tan 5π/4

Respuesta :

evgeniylevi evgeniylevi

26-10-2020

Answer:

C

Step-by-step explanation:

A. 1

B. 1

C. -1

D. 1

Answer Link

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