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Stella [2.4K]
3 years ago
9

Solve for x2x+1=11provide explanation please

Mathematics
2 answers:
KatRina [158]3 years ago
8 0

Answer:

x = 5.

Step-by-step explanation:

2x + 1 = 11

Subtract 1 from both sides:

2x = 11 - 1 =10

Divide both sides by 2:-

x = 10/2

x = 5.

hram777 [196]3 years ago
7 0

Answer:

x=5

Step-by-step explanation:

2x+1=11

   -1   -1

2x=10

---------

2    2

x=5

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Now we pick a number between   \frac{7\pi}{4} to 2pi

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Increasing interval is (0,\frac{3\pi }{4}) U (\frac{7\pi }{4}, 2\pi)

Decreasing interval is (\frac{3\pi}{4}, \frac{7\pi}{4})

(b)

The graph of f(x) increases and reaches a local maximum at x=\frac{3\pi}{4}

The graph of f(x) decreases and reaches a local minimum at x=\frac{7\pi}{4}

(c)

f(0) = 0

f(2\pi)=0

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Here global maximum at x=\frac{3\pi}{4}

Here global minimum at x=\frac{7\pi}{4}


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