My Math Forum Trig Problem Question within a question

 Trigonometry Trigonometry Math Forum

 March 21st, 2019, 07:34 PM #1 Newbie   Joined: Mar 2019 From: Coldland Posts: 5 Thanks: 0 Trig Problem Question within a question Problem says to find the Cosine and Sine of pi/6 ----------------------------------------------------------------------------- Here is the question: As before, the terminal side of θ = pi/6 does not lie on any of the coordinate axes, so we proceed using a triangle approach. Letting P(x, y) denote the point on the terminal side of θ which lies on the Unit Circle, we drop a perpendicular line segment from P to the x-axis to form a 30◦ − 60◦ − 90◦ right triangle. After a bit of Geometry we find x = y sq. root 3 Now, the problem reads on but my question or better yet where I am stumped at is where it states " After a bit of Geometry ... " What is this geometry I am overthinking. Thank you.
 March 21st, 2019, 08:03 PM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,467 Thanks: 1342
 March 21st, 2019, 08:25 PM #3 Newbie   Joined: Mar 2019 From: Coldland Posts: 5 Thanks: 0 Hi romsek, I still don't follow. X = Y root 3 ? How did you do this. I'm just starting Trig
 March 21st, 2019, 08:33 PM #4 Newbie   Joined: Mar 2019 From: Coldland Posts: 5 Thanks: 0 nvm romsek I now do understand it. Thank you.

 Tags problem, question, trig

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post jaxoncreed Trigonometry 3 March 24th, 2014 06:46 PM AndrewAnt Trigonometry 1 April 17th, 2013 11:47 AM Bihzad Algebra 1 March 11th, 2009 01:48 PM pudro Algebra 0 November 10th, 2008 08:12 PM BigPapa Algebra 1 April 29th, 2008 05:04 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top