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Trigonometry Forum

Trigonometry Help Forum: Graphing trig expressions, identities, angles, applied questions

1. Can you help me find some angles and distances in a rectangle *pic inside*

• Replies: 2
• Views: 748
Apr 17th 2017, 06:18 PM
2. find lengths of triangle's 2 sides

• Replies: 4
• Views: 967
Apr 2nd 2017, 04:21 AM
3. Soling cos equation

• Replies: 1
• Views: 683
Mar 23rd 2017, 01:36 PM
4. Solving trig equation for its input

• Replies: 2
• Views: 662
Mar 22nd 2017, 11:15 PM
5. Half Angle Fromula

• Replies: 3
• Views: 530
Mar 20th 2017, 09:21 PM
6. Cosines of multiples of x

• Replies: 1
• Views: 980
Mar 20th 2017, 10:22 AM
7. 2 sin(x/2) cos(x/2) = sin(x)?

• Replies: 2
• Views: 589
Mar 11th 2017, 01:38 PM
8. Find solutions for SIN(x)=-a, where a=SIN(α) for 0<α<pi/2

• Replies: 3
• Views: 647
Mar 6th 2017, 07:58 AM
9. Divide a circle into 400 parts and call these measurements "Gradians"

• Replies: 6
• Views: 817
Feb 24th 2017, 09:51 AM
10. Having trouble with proving a trig identity

• Replies: 2
• Views: 2,380
Feb 23rd 2017, 01:46 PM
11. clock

• Replies: 3
• Views: 2,666
Feb 13th 2017, 04:36 PM
12. expression

• Replies: 5
• Views: 733
Feb 5th 2017, 11:24 AM

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14. HELP solve this trigonometric equation

• Replies: 1
• Views: 574
Jan 30th 2017, 08:30 PM

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how to provr a point is co planar

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