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If cosQ=4/5then evaluate tanQ

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If cosQ=4/5then evaluate tanQ

Posted by Abcd Abcd 3 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Mahak Yadav 3 years, 4 months ago

CosQ =QR/PQ CosQ=4/5 Let QR=4k and PQ=5k By Pythagoras theorem PQ square= PR square +QR square (5k) square = PR square+ 4k square 9k square=PR square 3k = PR TanQ = PR/QR TanQ= 3k /4k TanQ = 3/4

0Thank You

👌Aditya 👌 👌Kumar👌 3 years, 4 months ago

CosQ = b/h = 4/5 TanQ = p/b = 3/4

0Thank You

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CBSE > Class 10 > Mathematics