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ozzi
2 years ago
12

Write the equation for the inverse of the function. y = sin x​

Mathematics
2 answers:
MakcuM [25]2 years ago
7 0

Answer:

<em>  The answer is \sin^{-1}x = y</em>

Step-by-step explanation:

    We need to find the inverse of the function

     y = sinx

    Taking \sin^{-1} on both sides

    \sin^{-1}y =  \sin^{-1}sinx

     \sin^{-1}y = x

     Substituting x to y and y to x

<em>      \sin^{-1}x = y</em>

     This is the required inverse of the function

     The graph of the function and its inverse is symmetric about y = x

<em>     The answer is \sin^{-1}x = y</em>

NemiM [27]2 years ago
6 0

Answer:

y = Arcsin x

Step-by-step explanation:

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3 years ago
If it takes you 40 minutes to go 20 miles downstream and then 60 minutes on the way back, what is the speed of the current?
IrinaK [193]

Answer:

Speed of Current = 5 miles per hour

Step-by-step explanation:

We know distance formula,

D = RT

Where

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R is rate

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If we let speed of boat (assume) to be "x" and speed of current to be "c"

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Upstream rate is (against current) = x - c

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and

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Simplifying first equation:

40x + 40c = 20

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Multiplying first equation by 60, we get:

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Multiplying second equation by 40, we get:

40 * [60x - 60c = 20] = 2400x - 2400c = 800

Now we add up both these equations:

2400x + 2400c = 1200

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----------------------------------

4800x = 2000

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40x + 40c = 20\\40(\frac{5}{12}) + 40c = 20\\\frac{50}{3}+40c=20\\40c=20-\frac{50}{3}\\40c=\frac{10}{3}\\c=\frac{1}{12}

Speed of Current = 1/12 miles per minute

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