Mathematics in Ancient and Medieval India c9.29
Mathematics in Ancient and Medieval India c9.29
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c9.29
Hence P₁S ( *bhūjakhaṇḍa* or sine difference ) = (Cosine chord at P × increase in the arc)/radius and PS ( *koṭijyākhaṇḍa* or cosine difference ) = (Sine chord at P × increase in the arc)/radius