Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 1)
Which trigonometric ratio is defined as Opposite/Hypotenuse?
Sine
Cosine
Tangent
Cosecant
Explanation
The sine function is defined as the ratio of the length of the side opposite to an angle to the length of the hypotenuse.
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