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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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Solve the inequality and state the answer in interval notations 3x-7 ≤ 14
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Answer:

Step-by-step explanation:

3x-7 ≤ 14

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x≤ 21/3 = 7

=> x = (-∞;7]

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3 years ago
The temperature at 4 a.m. was -13 °F. The temperature was rising at a steady rate of 5 °F an hour. At what time will the tempera
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3 years ago
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