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saul85 [17]
3 years ago
15

Simplify and write the trigonometric expression in terms of sine and cosine:

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

f(x) = + cosx or - cosx

Step-by-step explanation:

(2+tan^2x/sec^2x) -1 =(f(x))^2​

=(( 1 + sec^2x)/sec^2x) -1

= 1 / sec^2x + 1 - 1

=  1 / sec^2x

= cos^2x

(f(x))^2​ = cos^2x

f(x) = + cosx or - cosx

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A manager must select three coders from her group to write three different software projects. There are 7 junior and 3 senior co
gavmur [86]

Answer:

The total number of ways are 168.

Step-by-step explanation:

Consider the provided information.

There are 7 junior and 3 senior coders in her group.

The first project can be written by any of the coders. The second project must be written by a senior person and the third project must be written by a junior person.

For second project we have 3 choices and for third project we have 7 choices.

Now there are 2 possible case:

Case I: If first and second coder is senior, then the total number of ways are:

3\times 2\times 7=42

Case II: If first and third coder is junior, then the total number of ways are:

7\times 3\times 6=126

Hence, the total number of ways are: 42+126=168

6 0
3 years ago
What is the greatest possible error when measuring to the nearest quarter of an inch?
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The greatest possible error when measuring to the nearest quarter of an inch is how the reader reads the measurement. Sometimes, we base our answers to what we can see and what we see may be different from others.

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3 years ago
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It should go between the 8 and the 10.
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Ayden ran 2 7/8 laps. eduardo ran 1 1/4 laps. how much farther did ayden run than eduardo?
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Answer:

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Step-by-step explanation:

2 7/8 - 1 1/4 = 1 5/8.

hope this helps :)

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2 years ago
Read 2 more answers
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