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3 years ago

PLEASE HELP AND EXPLAIN!

Mathematics

1 answer:

Karolina [17]3 years ago

6 0

To begin with the vertical line is y and the horizontal line is x. There are two coordinates per piece of the graph. (X,Y) The first one right down the middle is (0,1) graph the first number being x and the second being y. hope this helps a bit

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Which of the following is equivalent to cos x?

Otrada [13]

ANSWER

D) sin Y

EXPLANATION

The given triangle is a right triangle.

This implies that that:

$x + y = 90 \degree$

Then we have

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Recall that

$\cos(x) = \sin(90 - x)$

But

$90 - x = y$

When we do the substitution, we get,

$\cos(x) = \sin(y)$

Therefore cos(x) is a equivalent to sin(y).

The correct answer is D.

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alexira [117]

Answer:

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4 years ago

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