Identities & Complementary Angles

Identities और complementary angles

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Identities & Complementary Angles

  • Trigonometry Basics
  • Identities & Complementary Angles
नमस्ते दोस्तों! MeraExam में आपका स्वागत है। आज की class में समझेंगे — Identities और complementary angles। बिलकुल zero से, एकदम आसान भाषा में। चलिए शुरू करते हैं!
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Interactive — learn by doing. Drag, tap and explore to build the intuition.

Trig ratios are just triangle sides

Slide the angle. sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite/adjacent. Every identity comes from Pythagoras.

θ=37°
0.602
sin θ
0.799
cos θ
0.754
tan θ
sin²θ + cos²θ = 0.362 + 0.638
= 1
Always 1 — that's the master identity, straight from Pythagoras.