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Evgen [1.6K]
2 years ago
14

Drag the tiles to the boxes to form correct pairs.

Mathematics
1 answer:
o-na [289]2 years ago
4 0

Answer:

(g + f)(2) = \sqrt 3 - 3

(\frac{f}{g})(-1) = 0

(g + f)(-1) = \sqrt{15}

(g * f)(2) = -3\sqrt 3

Step-by-step explanation:

Given

f(x) =1 - x^2

g(x) = \sqrt{11 - 4x

See attachment

Solving (a): (g + f)(2)

This is calculated as:

(g + f)(2) = g(2) + f(2)

Calculate g(2) and f(2)

g(2) \to \sqrt{11 - 4 * 2} = \sqrt{3}

f(2) = 1 - 2^2 = -3

So:

(g + f)(2) = g(2) + f(2)

(g + f)(2) = \sqrt 3 - 3

Solving (b): (\frac{f}{g})(-1)

This is calculated as:

(\frac{f}{g})(-1) = \frac{f(-1)}{g(-1)}

Calculate f(-1) and g(-1)

f(-1) = 1 - (-1)^2 = 0

So:

(\frac{f}{g})(-1) = \frac{f(-1)}{g(-1)}

(\frac{f}{g})(-1) = \frac{0}{g(-1)}

(\frac{f}{g})(-1) = 0

Solving (c): (g - f)(-1)

This is calculated as:

(g + f)(-1) = g(-1) - f(-1)

Calculate g(-1) and f(-1)

g(-1) = \sqrt{11 - 4 * -1} = \sqrt{15}

f(-1) = 1 - (-1)^2 = 0

So:

(g + f)(-1) = g(-1) - f(-1)

(g + f)(-1) = \sqrt{15} - 0

(g + f)(-1) = \sqrt{15}

Solving (d): (g * f)(2)

This is calculated as:

(g * f)(2) = g(2) * f(2)

Calculate g(2) and f(2)

g(2) \to \sqrt{11 - 4 * 2} = \sqrt{3}

f(2) = 1 - 2^2 = -3

So:

(g * f)(2) = g(2) * f(2)

(g * f)(2) = \sqrt 3 * -3

(g * f)(2) = -3\sqrt 3

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