class 10 important question.... answer pls... no spam ..or else report
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Answer:
-2/3
Step-by-step explanation:
Given
∆PQR, PQ = 12 cm, PR = 13cm
Angle Q = 90°
Which implies QR =√(13)²-(12)² = √169 - 144 =√25 = 5 cm
tanP = Opposite/Adjacent = QR/PQ = 5/12
cosecR = Hypotenuse/Opposite = PR/PQ = 13/5
Therefore, tanP - cosecR = 5/12 - 13/12 = -8/12 = -2/3
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