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3 years ago

5

Solve the equation, 4 - (x + 1) = 6. x = -9 x = 3 x = -3 x = 9

1 answer:

sertanlavr [38]3 years ago

5 0

Answer:

x = -3

Step-by-step explanation:

$4-(x+1) =6$

Distribute the negative

$4 - x - 1 = 6$

Combine like terms on Left Hand Side

$- x + 3 = 6$

Substract 3 from both sides

$-x = 3$

Divide both sides by -1 to get rid of the negative

∴ $x = - 3$

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Solve the trigonometric equation in the interval [0, 2π). Give the exact value, if possible; otherwise, round your answer to two

svp [43]

Answer:

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Explanation:

The given equation is

$sin(2\theta )-cos(2\theta )=0$

$\Rightarrow sin(2\theta )=cos(2\theta )\\\\\therefore \frac{sin(2\theta )}{cos(2\theta )}=1\\\\tan(2\theta )=1\\\\\therefore 2\theta =n\pi +\frac{\pi}{4}\\\\\therefore \theta =\frac{n\pi }{2}+\frac{\pi }{8}$

Applying values on 'n' we obtain values of θ that beling to [0,2π)

For n=0, θ= $\frac{\pi }{8}$

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$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:2x - 3$

____________________________________

$\large \tt Solution \: :$

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