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Juliette [100K]
3 years ago
8

Find the general solution for cos x = 0, where n is an integer.

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0
First we solve this equation:
x = cos^-1(0) = pi/2 and 3pi/2

Now, this is the answer for angles between 0 and 2pi

but there are "negative angles" and angles larger than 2pi
so the general solution that includes all of these cases is:

x = pi/2 + n*pi

here n is any integer.
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Please help. Screenshot attachedn
NARA [144]

Answer:

x = -0.17   and    x = -5.83

Step-by-step explanation:

We are asked to solve the quadratic equation

x^2+6\,x+1=0

We use the quadratic formula using a = 1, b = 6 and c = 1

for a general quadratic equation of the form: ax^2+bx+c=0

Then, the solutions are given by;

x=\frac{-6+/-\sqrt{36-4\,(1)\,(1)} }{2} =\frac{-6+/-\sqrt{32} }{2}

which produces the two following answers (rounded to two decimals):

x = -0.17   and    x = -5.83

8 0
3 years ago
Find the x intercept and y intercept for the graph of 2x-3y=6
Ksenya-84 [330]
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3 0
3 years ago
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Jayce is a taxi driver
erastovalidia [21]

Answer:

Jayce's fee for his 10^{th} drive is equal to K dollars.

Step-by-step explanation:

M(n) models Jayce's fee (in dollars) for his n^{th} drive on a certain day.

Substitute n=10, then

M(10) models Jayce's fee (in dollars) for his 10^{th} drive on a certain day.

This means Jayce's fee for his 10^{th} drive is equal to K dollars.

3 0
3 years ago
The next train will arrive in 32 minutes and 30 seconds. In how many seconds will the next train arrive
sineoko [7]
You need to multiply the 30 with the 32
4 0
3 years ago
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8* x + y + y; use x=9, and y = 10​
katrin [286]

Answer:

92

Step-by-step explanation:

8* x + y + y

Where

x=9, and y = 10​

Solution=8×9+10+10

=72+20

=92.

So the answer is 92

8 0
2 years ago
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