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Class 10 Mathematics Trigonometric Ratios (1 questions)


Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined); motivate the ratios, whichever are defined at 0^o & 90^o. Values (with proofs) of the trigonometric ratios of 30^o, 45^o & 60^o.  Relationships between the ratios.

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