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"Maths Question"

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Thu 13/11/03 at 20:31
Regular
"She's a dog!"
Posts: 1,223
Well, I'm a little stuck on this question, A-level standard (P1).


Find all the solutions of the equation

sin(3x + 45 degrees) = 0.7

in the interval -90 degrees ¡Ü x < 90 degrees, giving your answers to teh nearest 0.1 degree.


I got the primary solution of -0.2 but I am stuck on how to get the other 5 solutions.
Thu 13/11/03 at 20:31
Regular
"She's a dog!"
Posts: 1,223
Well, I'm a little stuck on this question, A-level standard (P1).


Find all the solutions of the equation

sin(3x + 45 degrees) = 0.7

in the interval -90 degrees ¡Ü x < 90 degrees, giving your answers to teh nearest 0.1 degree.


I got the primary solution of -0.2 but I am stuck on how to get the other 5 solutions.
Thu 13/11/03 at 20:32
Regular
"She's a dog!"
Posts: 1,223
The weird symbol should the the bigger and equal sign.
Thu 13/11/03 at 20:33
Regular
"She's a dog!"
Posts: 1,223
be the*


Damn quick typing.
Thu 13/11/03 at 20:40
Regular
"tokyo police club"
Posts: 12,540
this monkey has gone to heaven
Thu 13/11/03 at 20:42
Regular
"She's a dog!"
Posts: 1,223
I guess no one knows then.
Thu 13/11/03 at 20:44
Regular
"tokyo police club"
Posts: 12,540
i just laugh at your kind.
Thu 13/11/03 at 20:46
Regular
"She's a dog!"
Posts: 1,223
Why'd you laugh?
Thu 13/11/03 at 20:48
Regular
Posts: 15,579
oh god i hated this crap. Its where you gotta go round the 4 quadrants on the axis innit? ASTC. All sausages turn cold.
Thu 13/11/03 at 20:50
Regular
"She's a dog!"
Posts: 1,223
All Schoolteachers take crack
Thu 13/11/03 at 21:05
Regular
"Peace Respect Punk"
Posts: 8,069
Having not read your question too well, I *think* all you do is get the answers as usual (but get answers up to 1080 degrees because of the 3x), then re-arrange the equation so you take 45 off the answer, then divide by three...

Thats what I'd do anyhoo.

And this monkey has indeed gone to heaven.

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