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a_sh-v [17]
2 years ago
14

Find the area enclosed by the graphs of y = sin x, y = cos x, x = 0, and x = 2. Sketch a graph.

Mathematics
1 answer:
mars1129 [50]2 years ago
6 0

Answer:

1.34 (3 sf)

Step-by-step explanation:

To find the area between 2 curves:

\int\limits^a_b {(top-bottom)} \, dx

As these 2 curves intersect, we have to first calculate where they intersect, then work out the area between the curves BEFORE and AFTER the point of intersection, as the "top" and "bottom" curves change after the point of intersection (see attached graph).

   sin(x) = cos(x)

⇒ tan(x) = 1

⇒ x = \frac{1}{4} \pi

So the curves intersect at x=\frac{1}{4} \pi (between x = 0 and x = 2)

To calculate the area between the 2 curves, x=0 and x=\frac{1}{4} \pi:

\int\limits^a_b {(top-bottom)} \, dx=\int\limits^\frac{\pi}{4}_0 {(cos(x)-sin(x))} \, dx=\sqrt{2}-1

Then to calculate the area between the 2 curves, x=\frac{1}{4} \pi and x=2:

\int\limits^a_b {(top-bottom)} \, dx=\int\limits^2_\frac{\pi}{4} {(sin(x)-cos(x))} \, dx=0.92106...

Therefore, the total area = \sqrt{2} -1+0.92106...=1.335276534...

(Please Brainliest if helped - thanks!)

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3 years ago
If g(x) = 4x^2 - 16 were shifted 7 units to the right and 3 down, what would the
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Answer:

The new equation is h(x)=4(x-7)^2-19

Step-by-step explanation:

Given : Function g(x) = 4x^2 - 16 were shifted 7 units to the right and 3 down.

To find : What would the  new equation be?​

Solution :

Shifting to the right with 'a' unit is

f(x)→f(x-a)

So, shifting g(x) 7 units to the right is

h(x) = 4(x-7)^2-16

Shifting to the down with 'b' unit is

f(x)→f(x)-b

So, shifting g(x) 3 units down is

h(x)=(4(x-7)^2-16)-3

h(x)=4(x-7)^2-19

The new equation is h(x)=4(x-7)^2-19

8 0
3 years ago
What is the volume of this triangular prism? A triangular prism. The triangular base has a base of 28 centimeters and height of
mamaluj [8]

Answer:

The volume of the triangular prism is 5676.16 cm³

Step-by-step explanation:

The area of the triangular base A = bh/2 where b = base = 28 cm and h = height = 22.4 cm.

Now, the volume of the triangular prism, V = area of triangular base, A × height of prism, h'

V = Ah' where h = height of prism = 18.1 cm

So, V = bhh'/2

Substituting the values of the variables into the equation for V, we have

V = bhh'/2

V = 28 cm × 22.4 cm × 18.1 cm/2

V = 14 cm × 22.4 cm × 18.1 cm

V = 5676.16 cm³

So, the volume of the triangular prism is 5676.16 cm³

3 0
3 years ago
Read 2 more answers
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