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If acos theta -bsin theta =c, then show ...

If `acos theta -bsin theta =c,` then show that ` asine theta + bcos =pm sqrt (a^(2)+b^(2)-c^(2))`

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SRISIRI PUBLICATION-IPE SCANNER (TEXUAL BITS)-Very Short Questions (2 marks) (Trigonometric Ratios, Transformations)
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