Long description: Trig6Fig6e

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A diagram of a right-angled triangle labeling the angle, adjacent side, and hypotenuse.

Alt text: A diagram of a right-angled triangle labeling the angle, adjacent side, and hypotenuse.

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  • The image displays a right-angled triangle, with one angle marked with the Greek letter theta (\(\theta\)).
  • The side adjacent to the angle theta is labeled with the variable \(x\).
  • The side opposite to the angle theta is labeled with the variable \(h\).
  • The longest side, or hypotenuse, is labeled with an arrow pointing towards it, suggesting a relationship involving the cosine function.
  • Below the triangle, the trigonometric relationship \(\text{COS } \theta = \frac{x}{h}\) is written.
  • Further to the right, the inverse function form \(\theta = \text{COS}^{-1}ig(\frac{x}{h}ig)\) is presented.

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