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 Form 4 Mathematics Trigonometry III Online Lessons

We are showing some more relationships between the trigonometric ratios.
Example 1. If tan θ = a, show that;
cosθsin2θ+cos3θsinθ=1a
Example 2 Show that;
(1-cosθ)(1+cosθ)(1-sinθ)(1+sinθ)=tan2θ

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