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If cos A=4/5,then find values of tanA and cotA

Posted by Vivek Gk 4 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Dhawanpreet Kaur 4 years, 10 months ago

Cos A =4/5 so, b/h=4/5 , b =4, h=5 and then tan A =3/4 ,cot A =4/3

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A . 4 years, 10 months ago

TanA=3/4 and cotA=4/3

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Yogita Ingle 4 years, 10 months ago

cos A = 4/5

sin A =√1 - cos² A = √1 - (4/5)² = √1 - 16/25 =√(25-16)/25 = √9/25 = 3/5

tan A = sinA/cos A = 3/4

ans cot A = cos A /sinA = 4/3

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