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`DeltaPQR` में `angleQ` समकोण है। यदि `PQ=4` सेमी, `QR=3` सेमी `QR=3PR=5` सेमी, तो `cosP, tanP` तथा `cosR` के मान बताइए।

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Correct Answer - `cosP=4/5,tanP=3/4,cosR=3/5`

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