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pshichka [43]
3 years ago
15

Use the graph below to answer the question that follows: trig graph with points at 0, 2 and pi over 2, 0 and pi, negative 2 and

3 pi over 2, 0 and 2 pi, 2 and 5 pi over 2, 0 and 3 pi, negative 2 What trigonometric function represents the graph?
f(x) = −2 cos(x − pi over 2) f(x) = −2 sin(x − pi over 2) f(x) = 2 cos(x − pi over 2) f(x) = 2 sin(x − pi over 2)

What trigonometric function represents the graph?

 f(x) = −2 cos(x − pi/2) 
 f(x) = −2 sin(x − pi/2 )  
f(x) = 2 cos(x − pi/2)  
f(x) = 2 sin(x −pi/2 )

Mathematics
2 answers:
grigory [225]3 years ago
5 0

That would be  f(x) = -2sin(x - pi/2)

ahrayia [7]3 years ago
3 0

Answer:

f(x) = −2 cos(x − pi over 2)

Step-by-step explanation:

Because the absolute value of -2 is 2,and cos starts at its maximum

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1 2/5m-3/5(2/3m+1) How do you solve this problem
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Step-by-step explanation:

I am not sure what you mean by "solve".

I assume you mean simplify the expression.

and then it is very tricky to find the true original expression the way you typed it.

I think you meant

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1 = 5m/5m

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when dividing by a fraction, it is the same as multiplying with the upside-down fraction

so, this is the same as

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this would give us in total

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to do the subtraction we need to bring both fractions to the save denominator (lower part).

it seems to me the easiest one would be 10m.

so,

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if we want to transform this back to a sum of fractions :

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