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3 years ago

Which values of x and y would make the following expression represent a real number?

Mathematics

2 answers:

nexus9112 [7]3 years ago

6 0

Answer:

The answer is C on edge

Step-by-step explanation:

just took the test

slavikrds [6]3 years ago

4 0

Answer:

x = 6, y = - 3

Step-by-step explanation:

Given the product of a complex number and its conjugate, that is

(x + yi)(x - yi) → where x and y are real

= x² + y² ← a real number

Given

(6 + 3i), then we require the conjugate 6 - 3i , that is

(6 + 3i)(6 - 3i)

= 6² + 3² = 36 + 9 = 45 ← a real number

Thus

x = 6 and y = - 3 are the required values

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Answer:

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Step-by-step explanation:

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Multiply using that cost and new values.

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miskamm [114]

Answer:

Step-by-step explanation:

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The red arrows on the attachment indicate where opposite, hypotenuse, and adjacent are for angle A.

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