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#1 2009-12-08 12:41:33
- sarabjot_anand
- Member
- Registered: 2009-12-08
- Posts: 7
Math - Advance Functions - Trignometry
If an object travels in a circle (32pi/5) radians, at what degree measure is it, relative to where it started?
a. 1052 degrees
b. 144 degrees
c. 72 degrees
d. 60 degrees
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#2 2009-12-08 12:44:05
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Math - Advance Functions - Trignometry
Hi;
(32 pi) / 5 radians = 1152°
1152 mod 360 = 72°
c) 72°
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3 2009-12-08 12:47:24
- careless25
- Real Member
- Registered: 2008-07-24
- Posts: 560
Re: Math - Advance Functions - Trignometry
I believe the answer is c. 72 degrees
32pi/5 = 6pi + 2pi/5
6pi = 3 rotation and 2pi/5 is partial rotation( i m assuming that this is where it started).
2pi/5 = 72 degrees
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#4 2009-12-08 12:51:11
- sarabjot_anand
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- Registered: 2009-12-08
- Posts: 7
Re: Math - Advance Functions - Trignometry
Which of the following is not a primary trigonometric ratio of 2pi/3?
1. 2/(sqt 3)
2. -1/2
3. (sqt3)
4. (sqt3)/2
P.s ... sqt = square root
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#5 2009-12-08 12:55:32
- careless25
- Real Member
- Registered: 2008-07-24
- Posts: 560
Re: Math - Advance Functions - Trignometry
wats sin, tan, and cos of 2pi/3?
watever is not is your answer.
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#6 2009-12-08 12:58:29
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Math - Advance Functions - Trignometry
Hi;
The answer is:
4) sqrt(3) / 2
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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