A bird (B) is spotted flying 6,000 feet from a tower (T)). An observer (O) spots the top of the tower (T) at a distance of 9,000 feet. What is the angle of depression from the bird (B) to the observer (O)? 33.69°
41.81°
48.18°
56.31°

Option (4). 56.31°

Step-by-step explanation:

From the figure attached,

Distance between the bird and tower (BT) = 6000 feet

Distance between the tower and the observer (OT) = 9000 feet

We have to find the angle of depression (∠TBO)

tanx =

tanx =

tanx = 1.5

x =

x = 56.31°

Angle of depression from the bird to the observer is 56.31°

Option (4) will be the answer.

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step-by-step explanation:

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for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

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etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

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