1. Resolve, em IR as equações seguintes:

Mathematics

1 answer:

WINSTONCH [101]2 years ago

5 0

Answer:

Logo, no intervalo [0°,360°] as soluções da equação sen2x=–senx . São: . 0°,120° ... k∈Z . S={x∈IR: X=(π\2)+2kπ , k∈Z } . b) arccos(2x²–1)=2arccos(1/2) .

Step-by-step explanation:

i know it

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Step-by-step explanation:

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