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In the given ΔPQR, right-angled at Q, QR = 9 cm and PR - PQ = 1 cm. Determine the value of sin R + cos R.

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In the given ΔPQR, right-angled at Q, QR = 9 cm and PR - PQ = 1 cm. Determine the value of sin R + cos R.

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(By Pythagoras theorem)

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