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Masja [62]
3 years ago
14

Which expression is equivalent to sec2x − 1?

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0

Answer:

tan²x

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1

Divide all terms by cos²x

\frac{sin^2x}{cos^2x} + \frac{cos^2x}{cos^2x} = \frac{1}{cos^2x}, that is

tan²x + 1 = sec²x ( subtract 1 from both sides )

tan²x = sec²x - 1

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horrorfan [7]
For this case, the first thing we must do is define variables.
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 Answer:
 
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6 0
3 years ago
Find the area. The figure is not drawn to scale
poizon [28]

Answer:

96 square inches.

Step-by-step explanation:

From given picture we see that

BC=8 in

AD=10 in

Given that

AD=AB

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Apply Pythagorean theorem in triangle ABC to find AC

(hypotenuse)^2=(base)^2+(perpendicular)^2

(AB)^2=(BC)^2+(AC)^2

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take square root

6=AC

Then area of triangle ABC =\frac{1}{2}\left(base\right)\left(altitude\right)

=\frac{1}{2}\left(8\right)\left(6\right)=24

There are total 4 congruent triangles.

Then total area of the given figure = 4(24)=96 square inches.

7 0
3 years ago
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7nadin3 [17]

Answer: division , addition, addition, multiplication, subtraction, addition, multiplication

Step-by-step explanation: idrk know how to explain other than the fact that you look at the symbols.

5 0
3 years ago
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In 12 turns, she lands in a blue space 3 times.

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6 0
2 years ago
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Levart [38]
So basically we need to divide

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I hope I've helped!
6 0
3 years ago
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