3 years ago

1/2 más 1/3 es igual

Mathematics

1 answer:

Mademuasel [1]3 years ago

7 0

solución:

1/2 más 1/2 es 5/6

Espero esto te ayudo.

¿Por favor avísenme si es correcto?

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if tanA= -1/7 and tanB= 3/4, where A is abtuse and B is acute, Find without using tables the value of A-B (ans/135)

Damm [24]

Answer:

$A - B = 135 \degree$

Step-by-step explanation:

Recall the trigonometric identity:

$\tan(A - B)=\frac{\tan A-\tan B}{1+\tan A \tan B}$

We substitute;

tan A=-1/7 and tan B=3/4

$\tan(A - B)=\frac{ - \frac{1}{7} - \frac{3}{4} }{1 - \frac{1}{7} \times \frac{3}{4} }$

$\tan(A - B) = - 1$

This implies that,

$A - B = { \tan}^{ - 1} ( - 1)$

$A - B = { \tan}^{ - 1} ( 1) + 90$

$A - B = 45+ 90$

$A - B = 135 \degree$

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Does the graph of the equation y = 7 - 2x increase or decrease? A) decreases because the x values decrease from left to right B)

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Y=mx+b
m=slope=rise/run
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decreasing
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1/2 más 1/3 es igual ​

1/2 más 1/3 es igual