solve questions number 2
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Step-by-step explanation:
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Step-by-step explanation:In the figure, by Pythagoras Theorem,
QR
2
=PR
2
−PQ
2
=(13)
2
−(12)
2
=25
⇒QR=
25
=5 cm
In △PQR right angled at Q,
QR=5 cm is side opposite to the angle P and PQ=12 cm is side adjacent to the angle P.
Therefore, tanP=
PQ
QR
=
12
5
Now, QR=5 cm is side adjacent to the angle R and PQ=12 cm is side opposite to the angle R.
Therefore, cotR=
PQ
QR
=
12
5
.
Hence, tanP−cotR=
12
5
−
12
5
=0
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