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sleet_krkn [62]
3 years ago
11

6cos x-6sin x=3.sqrt6

Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0
Divide by 6
cos x - sin x = \frac{\sqrt{6}}{2}

Square both sides
cos^2 x -2 sin x cos x + sin^2 x = \frac{3}{2}

Simplify Left side using Trig identities: (Pythagorean, Double Angle)
1 - sin (2x) = \frac{3}{2}

Solve for x:
sin (2x) = -\frac{1}{2}  \\  \\ 2x = \frac{7 \pi}{6}, \frac{11 \pi}{6} \\  \\ x = \frac{7 \pi}{12}, \frac{11 \pi}{12}
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Draw the graph of f(x) = (x − 1)2 − 2. Start by creating a table of ordered pairs for the function. Then plot the points from th
pogonyaev

The attached graph represents the graph of f(x) = (x - 1)^2 - 2

<h3>How to plot the graph?</h3>

The equation is given as:

f(x) = (x - 1)^2 - 2

Next, we set x to -2, -1, 0, 1 and 2.

So, we have:

f(-2) = (-2 - 1)^2 - 2 = 7

f(-1) = (-1 - 1)^2 - 2 = 2

f(0) = (0 - 1)^2 - 2 = -1

f(1) = (1 - 1)^2 - 2 = -2

f(2) = (2 - 1)^2 - 2 = -1

This means that the table of values is

x      f(x)

-2    7

-1    2

0    -1

1     -2

2    -1

Next, we plot the above points and connect them.

See attachment for the graph of f(x) = (x - 1)^2 - 2

Read more about graphs and functions at:

brainly.com/question/4025726

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7 0
2 years ago
Find the Y intercept of the graph
zhenek [66]

Answer:

6

Step-by-step explanation:

The intercept would be 6 because that's the point on the Y line or the line going vertically.    

8 0
3 years ago
Please help me
yKpoI14uk [10]

9514 1404 393

Answer:

  A)  5x+12 = -12x-12

  D)  5x+12 = -5x-12

Step-by-step explanation:

If you subtract the right side expression from both sides, you will get an equation with something equal to zero. If the 'something' has a variable in it, there is exactly one solution.

A: (5x+12) -(-12x-12) = 17x+24 = 0 . . . one solution

B: (5x+12) -(5x-5) = 17 = 0 . . . . no solutions

C: (5x+12)-(5x+12) = 0 = 0 . . . . infinite solutions

D: (5x+12) -(-5x-12) = 10x +24 = 0 . . . one solution

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i think the answer to this problem is49

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Which question can be answered by finding 2 1/2÷1/2?
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