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Arlecino [84]
3 years ago
13

Use the fundamental identities to fully simplify the expression

Mathematics
2 answers:
Lyrx [107]3 years ago
6 0

Hey!

Hope this helps... And we're super sorry that no answered your question...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3sin^3 x * csc(x) + cos^2 x + 2cos(-x) * cos(x) = ?

3sin^3 x * (1/sin) + cos^2 x + 2cos(x) * cos(x) = ? We know 2cos(-x) = 2cos(x) because of the opposite angle theorem: cos(-x) = cos(x)

3sin^2 x + cos^2 x + 2cos(x) * cos(x) = ?

3sin^2 x + cos^2 x + 2cos^2 x = ?

sin^2 x + cos^2 x + 2cos^2 x = ?

3sin^2 x + 3cos^2 x = ?

3 (sin^2 x + cos^2 x) = ?

3 * 1 = ?

= 3

Thepotemich [5.8K]3 years ago
3 0
Hello here is a solution :

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535

Step-by-step explanation:

8 x 7 = 56

15 x 17 = 255 .  255 / 2 = 127.5

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3 years ago
A rectangle measures 2 <br> 1/2<br> inches by 1 <br> 5/16<br> inches. What is its area?
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Answer:

Height of the cliff = 13.66 m

Step-by-step explanation:

Let the height of the cliff is 'x' m and distance between the base of the cliff and the boat is 'y' m.

From right triangle AOC,

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From right angle triangle BOC,

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From equations (1) and (2),

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3 years ago
21-3+18/6<br><br> What is the correct answer?
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Step-by-step explanation:

PEMDAS:

Parenthesis

Exponent

Multiplication and Division

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21

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3 years ago
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