what are the electronic configuration for the first 20 element accordingly?
friday_2020
22 Aug, 2021
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Anime345
6 May, 2025
The bearing of Q from P Is 150 degrees and the bearing of R from Q is 060 degree . If PQ=5m and QR=3m , find the bearing of R from P . correct to the nearest degree?
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Anime345
5 May, 2025
if the bearing of Y from X is 110 degree. find the bearing of X from Y?
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