https://blog.education-den.com/grade-11/trigonometry/Recent content in Trigonometry on Education DenHugo -- gohugo.ioen© 2026Sun, 08 Feb 2026 15:10:00 +0200https://blog.education-den.com/grade-11/trigonometry/reduction/Sat, 07 Feb 2026 18:25:00 +0200https://blog.education-den.com/grade-11/trigonometry/reduction/Master the CAST diagram, every reduction formula, co-functions, negative angles, and how to simplify multi-step trig expressions — with full worked examples.https://blog.education-den.com/grade-11/trigonometry/solving-triangles/Sat, 07 Feb 2026 18:30:00 +0200https://blog.education-den.com/grade-11/trigonometry/solving-triangles/Master the three rules for non-right-angled triangles — when to use each one, the ambiguous case, 2D problem solving, and full worked examples.https://blog.education-den.com/grade-11/trigonometry/identities-and-equations/Sat, 07 Feb 2026 18:35:00 +0200https://blog.education-den.com/grade-11/trigonometry/identities-and-equations/Master proving trig identities, solving trig equations with general solutions, and the fundamental identities — with full worked examples.https://blog.education-den.com/grade-11/trigonometry/trig-graphs/Sun, 08 Feb 2026 15:10:00 +0200https://blog.education-den.com/grade-11/trigonometry/trig-graphs/Master sketching and interpreting y = a sin(bx + p) + q, y = a cos(bx + p) + q, and y = a tan(bx + p) + q — with amplitude, period, phase shift, and full worked examples.