# Trigonometry Forum

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

1. ### Making concise function to amplify controller input

• Replies: 2
• Views: 524
May 25th 2016, 07:15 PM
2. ### trigonom. functions simult. eq

• Replies: 1
• Views: 482
May 25th 2016, 07:32 AM
3. ### Trig angle Formulas

• Replies: 1
• Views: 551
May 9th 2016, 12:41 PM
4. ### Perpendiculars are drawn from angles A, B, C of an acute angled triangle...

• Replies: 2
• Views: 1,751
May 3rd 2016, 11:23 PM

• Replies: 1
• Views: 563
Apr 28th 2016, 05:44 AM
6. ### Trigonometry

• Replies: 2
• Views: 629
Apr 24th 2016, 12:50 PM
7. ### Trig Product and Sum Help

• Replies: 9
• Views: 774
Apr 21st 2016, 12:12 AM
8. ### If 0<a,b<π and cos(a) + cos(b) - cos(a+b) = 3/2 then show that a=b=π/3

• Replies: 7
• Views: 2,421
Apr 20th 2016, 05:08 PM
9. ### How to prove(show) this?

• Replies: 4
• Views: 949
Apr 16th 2016, 07:24 AM
10. ### tan[arctan(3pi)]

• Replies: 2
• Views: 1,073
Apr 11th 2016, 01:41 AM

• Replies: 1
• Views: 546
Apr 10th 2016, 10:18 PM
12. ### Rectangular to trignometric form.

• Replies: 3
• Views: 795
Apr 10th 2016, 12:01 PM
13. ### find sin(theta+beta)

• Replies: 4
• Views: 1,611
Apr 10th 2016, 11:07 AM
14. ### y^2=x^3. Convert to polar

• Replies: 5
• Views: 656
Apr 10th 2016, 12:03 AM
15. ### Polar to rectangular: r^2=8/2-sin^2(theta)

• Replies: 5
• Views: 2,047
Apr 9th 2016, 03:56 PM
16. ### r=tan(theta) convert to rectangular form

• Replies: 5
• Views: 9,850
Apr 9th 2016, 11:30 AM
17. ### Conversion: Polar form to rectangular form.

• Replies: 1
• Views: 555
Apr 9th 2016, 10:09 AM
18. ### Parametric equations. x=2t-1 y=t^2-1

• Replies: 4
• Views: 2,020
Apr 8th 2016, 08:26 PM
19. ### Find magnitude and direction of resultant.

• Replies: 6
• Views: 679
Apr 8th 2016, 05:34 PM
20. ### Vector : <0,-3> graph, find magnitude, and direction.

• Replies: 1
• Views: 652
Apr 8th 2016, 05:14 PM
21. ### Inverse trig Functions: Evaluate quantities that are defined without a calculator.

• Replies: 4
• Views: 620
Apr 7th 2016, 11:17 AM

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# how to provr a point is co planar

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