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wariber [46]
3 years ago
15

Evaluate the following: Options are: pi/2 pi/8 pi Does not converge

Mathematics
1 answer:
andreev551 [17]3 years ago
6 0

Answer:

π/8

Step-by-step explanation:

∫₂°° dx / (4 + x²)

If x = 2 tan u, then dx = 2 sec²u du.

When u = π/4, x = 2.  As u approaches π/2, x approaches ∞.

∫ (2 sec²u du) / (4 + 4 tan²u)

½ ∫ (sec²u du) / (1 + tan²u)

½ ∫ (sec²u du) / sec²u

½ ∫ du

½ (π/2 − π/4)

π/8

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anzhelika [568]
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Serjik [45]
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6 0
3 years ago
What is s?? <br> A 44° <br> B 35.3° <br> C. 37.9°<br> D. 22°
melisa1 [442]

Answer: Choice B) 35.3 degrees

======================================================

Work Shown:

Apply the law of sines

sin(S)/s = sin(R)/r

sin(S)/16 = sin(120)/24

sin(S) = 16*sin(120)/24

sin(S) = 0.57735026918962

S = arcsin(0.57735026918962)

S = 35.2643896827542

S = 35.3

Make sure your calculator is in degree mode.

7 0
2 years ago
Use a proportion to solve the problem. Round to the nearest tenth as needed. A triangle drawn on a map has sides of lengths 9 cm
Volgvan
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3 years ago
Find the value of X. What is x and how do you solve for y first.
11111nata11111 [884]

Answer:

id.k but i hope this wuote helps u have a great day :) :)

Step-by-step explanation:

Everything will be okay in the end. If it’s not okay, it’s not the end

Have a nice day :) :) :)

5 0
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