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Given `sec theta =13/12`, calculate all other trigonometric ratios.

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Given `sec theta =13/12`, calculate all other trigonometric ratios.
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`sec theta = 13/12`
`:. cos theta = 1/sectheta = 12/13`
`=>sintheta = sqrt(1-cos2theta) = sqrt(25/169) = 5/13`
`=>tan theta = sintheta/costheta = 5/12`
`=>cot theta = 1/tan theta = 12/5`
`=>cosec theta = 1/sin theta = 13/5`
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