**How do I find the exact value of sin (pi/24)? jiskha.com**

Please help and explain!! I know that sin(2x)= 2sin(x)cos(x) but I get lost from there.-...you know that x is in the second quadrant, so you know that cos x is negative... the triangle is a 3, 4, 5 r... 22/11/2007Â Â· Upload failed. Please upload a file larger than 100 x 100 pixels; We are experiencing some problems, please try again. You can only upload files of type PNG, JPG or JPEG.

**Find the value of sin 300 degrees science.answers.com**

Please help and explain!! I know that sin(2x)= 2sin(x)cos(x) but I get lost from there.-...you know that x is in the second quadrant, so you know that cos x is negative... the triangle is a 3, 4, 5 r... 6 .Find the exact value of sin(2theta) = 3cos(theta) where 0

**Identities to find the exact value of sin 75?**

22/11/2007Â Â· Upload failed. Please upload a file larger than 100 x 100 pixels; We are experiencing some problems, please try again. You can only upload files of type PNG, JPG or JPEG.... I applied the half angle formula for sin and I got the square root of 2 minus the square root of 3 divided by 2 . and for cos I got thesqurof 2 plus thesqr of3divided by 2 .

**Identities to find the exact value of sin 75?**

with your values of sin(a) = 2/3 and cos(b) = -1/5, we need to find cos(a) and sin(b). Again, using a triangle, and putting the angle the 2nd quadrant, the angle a is in the bottom right vertex (angle from neg x-axis and the ray completing the angle), opposite side is vertical side = 2.... 13/12/2012Â Â· Use a half-angle formula to find the exact value of sin(pi/8).

## How To Find The Exact Value Of Sin

### How to find the exact value of cos 67.5 ? Physics Forums

- How to find the exact value of sin? Yahoo Answers
- Find the value of sin 300 degrees science.answers.com
- Find the exact value of sin 495 Study.com
- How do I find the exact value of sin (pi/24)? jiskha.com

## How To Find The Exact Value Of Sin

### I applied the half angle formula for sin and I got the square root of 2 minus the square root of 3 divided by 2 . and for cos I got thesqurof 2 plus thesqr of3divided by 2 .

- I applied the half angle formula for sin and I got the square root of 2 minus the square root of 3 divided by 2 . and for cos I got thesqurof 2 plus thesqr of3divided by 2 .
- 20/02/2012Â Â· One of the questions in the homework for online precalc class I'm taking is to find the exact value for cos (67.5). At first I didn't realize that I should just take the half angle of 135, so instead I tried to find the value for cos (45 + 45/2), and got stuck at this point.
- 17/11/2007Â Â· Upload failed. Please upload a file larger than 100 x 100 pixels; We are experiencing some problems, please try again. You can only upload files of type PNG, JPG or JPEG.
- The value of cos 8*cos 38 + sin 8* sin 38 is `sqrt 3/2` The value of cos 8*cos 38 + sin 8* sin 38 has to be determined. Use the relation cos x*cos y + sin x*sin y = cos(x - y)

### You can find us here:

- Australian Capital Territory: Fadden ACT, Callala Beach ACT, Macgregor ACT, Greenway ACT, Jacka ACT, ACT Australia 2624
- New South Wales: Laurel Hill NSW, Apsley NSW, St Peters NSW, Timbumburi NSW, Goobang (Ashburnham County parish) NSW, NSW Australia 2079
- Northern Territory: Rapid Creek NT, Pine Creek NT, Tipperary NT, Kulgera NT, Tiwi NT, Imanpa NT, NT Australia 0876
- Queensland: Kuraby QLD, Kippa-ring QLD, Jimboomba QLD, Wyandra QLD, QLD Australia 4036
- South Australia: Gurra Gurra SA, Sturt SA, Point Turton SA, North Beach SA, Keswick Terminal SA, Macgillivray SA, SA Australia 5074
- Tasmania: Fortescue TAS, Golconda TAS, Relbia TAS, TAS Australia 7037
- Victoria: Boort VIC, San Remo VIC, Hampton East VIC, Balaclava VIC, Lower Moira VIC, VIC Australia 3004
- Western Australia: Mt Clarence WA, Laverton WA, Woodbridge WA, WA Australia 6074
- British Columbia: Silverton BC, Pemberton BC, Lions Bay BC, Gold River BC, Port Alice BC, BC Canada, V8W 6W8
- Yukon: Dominion YT, Hootalinqua YT, Bear Creek YT, Little Gold YT, Watson Lake YT, YT Canada, Y1A 1C6
- Alberta: Grande Cache AB, Youngstown AB, Medicine Hat AB, Sexsmith AB, Spruce Grove AB, Ryley AB, AB Canada, T5K 7J6
- Northwest Territories: Wekweeti NT, Tsiigehtchic NT, Inuvik NT, Gameti NT, NT Canada, X1A 1L5
- Saskatchewan: Willow Bunch SK, Abbey SK, Arcola SK, Duff SK, Prud'homme SK, Buchanan SK, SK Canada, S4P 1C8
- Manitoba: Snow Lake MB, Portage la Prairie MB, Hartney MB, MB Canada, R3B 8P3
- Quebec: Saint-Cesaire QC, Joliette QC, Sherbrooke QC, L'Ancienne-Lorette QC, Marieville QC, QC Canada, H2Y 7W6
- New Brunswick: Pointe-Verte NB, Shediac NB, Aroostook NB, NB Canada, E3B 6H6
- Nova Scotia: Pictou NS, Pictou NS, New Glasgow NS, NS Canada, B3J 6S5
- Prince Edward Island: Ellerslie-Bideford PE, Morell PE, Tignish PE, PE Canada, C1A 8N5
- Newfoundland and Labrador: Meadows NL, Southern Harbour NL, Gallants NL, Birchy Bay NL, NL Canada, A1B 9J3
- Ontario: Falconbridge, Middlesex County ON, Wanstead ON, Middleport ON, Bullock, Quabbin ON, Burgoyne ON, Bells Crossing ON, ON Canada, M7A 2L5
- Nunavut: Whale Cove NU, Repulse Bay NU, NU Canada, X0A 2H3

- England: Middlesbrough ENG, Chatham ENG, Middlesbrough ENG, Lowestoft ENG, Lincoln ENG, ENG United Kingdom W1U 6A4
- Northern Ireland: Newtownabbey NIR, Derry (Londonderry) NIR, Newtownabbey NIR, Derry (Londonderry) NIR, Craigavon (incl. Lurgan, Portadown) NIR, NIR United Kingdom BT2 9H6
- Scotland: Glasgow SCO, Cumbernauld SCO, Cumbernauld SCO, Paisley SCO, Kirkcaldy SCO, SCO United Kingdom EH10 5B1
- Wales: Cardiff WAL, Barry WAL, Wrexham WAL, Barry WAL, Neath WAL, WAL United Kingdom CF24 4D3