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3 years ago

11

find the point on the terminal side of θ = negative three pi divided by four that has an x coordinate of negative 1

1 answer:

Mila [183]3 years ago

4 0

Check the picture below, is a negative angle, thus, is going "clockwise"

$\bf tan(\theta)=\cfrac{opposite}{adjacent}\qquad tan\left( -\frac{3\pi }{4} \right)=\cfrac{y}{x}\implies tan\left( -\frac{3\pi }{4} \right)=\cfrac{y}{-1}
\\\\\\
-1\cdot tan\left( -\frac{3\pi }{4} \right)=y\implies -1\cdot \cfrac{sin\left( -\frac{3\pi }{4} \right)}{cos\left( -\frac{3\pi }{4} \right)}=y
\\\\\\
-1\cdot \cfrac{-1}{-1}=y\implies -1$

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Given:

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5,250 as scientific notation

earnstyle [38]

$\text{Hey there!}$

$\text{5.250 as a scientific notation}$

$\bf{The\ answer\ is:}$ $\boxed{\bf{5.25 \times10^3}}}}$

$\text{Because, we had to move your decimal approximately 3 placecs to the left}$

$\rightarrow\tex{= 5250. }$

$\boxed{\text{That's how we know the answer is: \bf{\boxed{5.25 \times10^3}}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

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