Trigonometric ratios of an acute angle in a right-angled triangle, illustrating definitions of sine, cosine, tangent, cosecant, secant, and cotangent.
Diagram of a right-angled triangle showing trigonometric ratios (sine, cosine, tangent, cosecant, secant, cotangent) with sides labeled as base, perpendicular, and hypotenuse, and angle θ at vertex P.
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ID: #924302
