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
Answer:
Step-by-step explanation:
The given arc length relation requires the central angle be expressed in radians. There are π radians in 180°.
s = rθ = (5 in)(170°×π/180°) = 85π/18 in ≈ 14.84 in
4.8×5.2=24.96 I hope my math is correct