2 years ago

Given three side lengths, how many triangles can be formed?

Mathematics

1 answer:

guajiro [1.7K]2 years ago

8 0

The answer would be 3 or 4 triangles.

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Verify that (cos²a) (2 + tan² a) = 2 - sin² a....<br>

Sveta_85 [38]

Trigonometric Formula's:

$\boxed{\sf \ \sf \sin^2 \theta + \cos^2 \theta = 1}$

$\boxed{ \sf tan\theta = \frac{sin\theta}{cos\theta} }$

Given to verify the following:

$\bf (cos^2a) (2 + tan^2 a) = 2 - sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf (cos^2a) (2 + \dfrac{sin^2 a}{cos^2 a} )$

$\texttt{\underline{apply distributive method}:}$

$\rightarrow \sf 2 (cos^2a) + (\dfrac{sin^2 a}{cos^2 a} ) (cos^2a)$

$\texttt{\underline{simplify the following}:}$

$\rightarrow \sf 2cos^2 a + sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf 2(1 - sin^2a ) + sin^2 a$

$\texttt{\underline{distribute inside the parenthesis}:}$

$\rightarrow \sf 2 - 2sin^2a + sin^2 a$

$\texttt{\underline{simplify the following}} :$

$\rightarrow \sf 2 - sin^2a$

Hence, verified the trigonometric identity.

7 0

1 year ago

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ILL GIVE YOU BRAINLIST YOU ANSWER THIS PLSSSS NEED THE ANSWER ASAP, AND PLSSS SHOW YOU WORK!

Marat540 [252]

Answer:

x=5

14÷2=7

9÷2=2.5

2.5×2=5

5+9=14

4 0

2 years ago

colored markers cost 78 cents each Pablo has 21.62 dollars in his pocket how many markers can Pablo buy

USPshnik [31]

Answer:

he can buy 30

Step-by-step explanation:

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2 years ago

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Arisa [49]

Answer:

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Step-by-step explanation:

7=3(0)-5

7=-5

7+5

=12

Im pretty sure this is the answer

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2 years ago

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What is Mulitpaction

kramer

Answer:

Multiplication is one of the four elementary mathematical operations of arithmetic, with the others being addition, subtraction and division

Step-by-step explanation:

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2 years ago

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