Determine the three reciprocal trigonometric ratios of the angle.
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Answer: Option b.
Step-by-step explanation:
The reciprocal trigonometric ratios are:
1) Cosecant ([tex]csc\theta[/tex]), which is the reciprocal of the sine.
2) Secant ([tex]sec\theta[/tex]), which is the reciprocal of the cosine.
3) Cotangent ([tex]cot\theta[/tex]), which is the reciprocal of the tangent.
If:
[tex]sin\theta=\frac{opposite}{hypotenuse}}\\\\cos\theta=\frac{adjacent}{hypotenuse}\\\\tan\theta=\frac{opposite}{adjacent}[/tex]
Then:
[tex]csc\theta=\frac{hypotenuse}{opposite}}\\\\sec\theta=\frac{hypotenuse}{adjacent}\\\\cot\theta=\frac{adjacent}{opposite}[/tex]
Knowing that:
[tex]opposite=9\\adjacent=12\\hypotenuse=15[/tex]
You can substitute these values into the trigonometric ratios to find the values of the reciprocal ratios of the angle [tex]\theta[/tex]:
[tex]csc\theta=\frac{15}{9}}\\\\sec\theta=\frac{15}{12}\\\\cot\theta=\frac{12}{9}[/tex]
The correct option is:
Option: c and option: d
We know that with respect to the angle θ, the trigonometric ratios are defined as follows:
[tex]\sin \theta=\dfrac{opposite}{Hypotenuse}\\\\\\\cos \theta=\dfrac{adjacent}{Hypotenuse}\\\\\\\tan \theta=\dfrac{opposite}{adjacent}\\\\\\\csc \theta=\dfrac{Hypotenuse}{opposite}\\\\\\\sec \theta=\dfrac{hypotenuse}{adjacent}\\\\\\\cot \theta=\dfrac{adjacent}{opposite}[/tex]
Now, we know that the side which is opposite to angle θ is of length: 9
The side which is adjacent to angle θ is of length: 12
and the hypotenuse of the triangle is: 15
Hence, we have:
[tex]\sin \theta=\dfrac{9}{15}\\\\\\\cos \theta=\dfrac{12}{15}\\\\\\\tan \theta=\dfrac{9}{12}\\\\\\\csc \theta=\dfrac{15}{9}\\\\\\\sec \theta=\dfrac{15}{12}\\\\\\\cot \theta=\dfrac{12}{9}[/tex]