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Solve the given problems.In testing a heat-seeking rocket, it is always moving directly toward a remote-controlled aircraft. At a certain instant, the distance $r(\text { in } \mathrm{km})$ from the rocket to the aircraft is $r=\frac{100}{1-\cos \theta},$ where$\theta$ is the angle between their directions of flight. Find $d r / d \theta$ for $\theta=120^{\circ} .$ See Fig. 27.4

Calculus 1 / AB

Chapter 27

Differentiation of Transcendental Functions

Section 1

Derivatives of the sine and Cosine Functions

Derivatives

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In mathematics, precalculu…

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Height of a Rocket A rocke…

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A rocket-tracking facility…

00:11

A rocket is fired at an an…

08:08

A faulty model rocket move…

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A model rocket is launched…

12:38

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Solve each problem.Thr…

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A television camera at gro…

01:36

Angular Rate of Change A t…

let it is the height of the rocket, which is fired straight up. And this is the position off the Observer, which is one mile away from here, one mile away. Let us complete this drinking. No. If t ties the angle, Yeah, we have to find the value off edge in terms. Off feet, not in mice, but in Phoebe's. We know that one mile one mine equals five to it's zero feet 5 to 80 feet. So therefore, using this relation from this drinker, we have danger teeth, huh? Equals or was it what I just said at or one might that work one month? But we know one might is five to a zero feet sort. Engine Tita equals work 5 to 80 feet, 52 years, zero feet. And from here, we get that he goes 52 What? You can write fire to a zero being June. I do it. Zero danger, Which is the required fight in terms off feet? No. If we have different values of theta, we can find the height, for example. That has take equals this exclusivity. That s dictator equal 60 degree. So that becomes five to it zero into danger and 60. And we know that the engine 60 is scary tree. So therefore, edge equals by to fight to a zero scare three feet. So like this way for different values Off teeter, you can find different heights off the rocket.

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