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vladimir2022 [97]
3 years ago
9

Every 7 years the Lancaster family has a family reunion. Every 6 years they update their family tree. If they both had a photo t

aken and updated their family tree in 1997, in what year will both events occur again?
Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

In year 2039 both the events will happen again.                    

Step-by-step explanation:

We are given the following in the question:

Family reunion:

Every 7 year

Update the family tree:

Every 6 years

1997 was the year when they had a family reunion as well as they updated their family tree.

We have to find the year in which both the events will occur together.

We find the lowest common multiple of 7 and 6.

L.C.M(7,6) = 7\times 6 = 42

Thus, after 42 years both the event will happen again.

Year:

1997 + 42 = 2039

Thus, in year 2039 both the events will happen again.

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<h3>How to obtain the maximum value of a function?</h3>

To find the maximum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.

we want to find x-coordinates for the maximum points in any  function  f(x) by f'(x) =0

Given f(x)= 4cos(2x -π)

f'(x) = 0\\- 4sin(2x -\pi ) =0\\\\sin (2x -\pi ) =0 \\2x -\pi  = k\pi ...  k in Z

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