4 years ago

What are unknown coefficients?

Mathematics

1 answer:

Zinaida [17]4 years ago

3 0

Answer:

there is 3 solutions

Step-by-step explanation:

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En un triángulo rectángulo A es un ángulo agudo y Sen A = 4/5 ¿Cuál será el valor de Tan A?

Nonamiya [84]

Answer:

$\displaystyle \tan A=\frac{4}{3}$

Step-by-step explanation:

<u>Funciones Trigonométricas</u>

La identidad principal en trigonometría es:

$sen^2A+cos^2A=1$

Si sabemos que A es un ángulo agudo (que mide menos de 90°), su seno y coseno son positivos.

Dado que Sen A = 4/5, calculamos el coseno:

$cos^2A=1-sen^2A$

Sustituyendo:

$\displaystyle cos^2A=1-\left(\frac{4}{5}\right)^2$

$\displaystyle cos^2A=1-\frac{16}{25}$

$\displaystyle cos^2A=\frac{25-16}{25}$

$\displaystyle cos^2A=\frac{9}{25}$

Tomando raíz cuadrada:

$\displaystyle cos\ A=\sqrt{\frac{9}{25}}=\frac{3}{5}$

La tangente se define como:

$\displaystyle \tan A=\frac{sen\ A}{cos\ A}$

Substituyendo:

$\displaystyle \tan A=\frac{\frac{4}{5}}{\frac{3}{5}}$

$\displaystyle \tan A=\frac{4}{3}$

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3 years ago

PLEASE HELP NEED DONE ASAP !! I WILL REWARD BRAINLIEST

strojnjashka [21]

39,916,800 is the answer

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4 years ago

I need help with q5

Roman55 [17]

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3 years ago

a shipping box will be filled with two different machine parts. one type of machine part weights 0.15 ponds and the other weight

gulaghasi [49]

$\frac{x}{2} =0.15$ hope so this helps

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3 years ago

The function {(1, 4), (2, 5), (3, 6)} has the function rule y = 3x + 1.

inna [77]

False.
y= 3(1)+1= 4
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4 years ago

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