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miss Akunina [59]
2 years ago
11

Find the approximate values of the trigonometric functions of θ given the following information. Enter the values correct to 2 d

ecimal places. θ is in standard position the terminal side of θ is in quadrant III the terminal side is parallel to the line 2y - 5x + 16 = 0
sin θ =
cos θ =
tan θ =
cot θ =
sec θ =
csc θ =

Mathematics
1 answer:
kati45 [8]2 years ago
7 0

Answer:

Step-by-step explanation:

slope of any line is same as the tan θ . so we first try to find the slope of the given line and then using that we can find remaining trigonometric functions .

To find the slope of a line we need to change the equation of line to slope intercept form .

2y - 5x +16 =0

move all terms to right

2y = 5x - 16

divide all by 2

y = 5/2 x - 8

compare this with y =mx+b

slope = m = 5/2

It means

tan θ =  5/2 = 2.5

tan θ =  2.50

now use the trigonometric ratios (see the image attached )

sin θ = \frac{y}{z} = \frac{5}{\sqrt{29} }  = 0.93

cos θ =  \frac{x}{z} = \frac{2}{\sqrt{29} }  = 0.37

tan θ =  2.50

cot θ =  \frac{x}{y} = \frac{2}{5 }  = 0.40

sec θ =  \frac{z}{y} = \frac{\sqrt{29}{5} }  = 1.08

csc θ =  \frac{z}{y} = \frac{\sqrt{29}{2} }  = 2.69

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