Chapter 5: Problem 105
Describe the restriction on the tangent function so that it has an inverse function.
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Chapter 5: Problem 105
Describe the restriction on the tangent function so that it has an inverse function.
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Stonehenge, the famous "stone circle" in England, was built between 2750 B.C. and 1300 B.C. using solid stone blocks weighing over \(99,000\) pounds each. It required 550 people to pull a single stone up a ramp inclined at a \(9^{\circ}\) angle. Describe how right triangle trigonometry can be used to determine the distance the 550 workers had to drag a stone in order to raise it to a height of 30 feet.
Solve: $$|2 x-3|=7$$
\(\theta\) is an acute angle and sin u is given. Use the Pythagorean identity \(\sin ^{2} \theta+\cos ^{2} \theta=1\) to find cos \(\theta.\) $$ \sin \theta=\frac{\sqrt{39}}{8} $$
Use a calculator to find the value of the acute angle \(\theta\) in radians, rounded to three decimal places. $$ \cos \theta=0.4112 $$
Determine whether each statement makes sense or does not make sense, and explain your reasoning. A wheelchair ramp must be constructed so that the slope is not more than 1 inch of rise for every 1 foot of run, so I used the tangent function to determine the maximum angle that the ramp can make with the ground.
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