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Given 15 cotA=8, find sinA and …

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Given 15 cotA=8, find sinA and secA

Posted by Suhana Mehta 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Aakanksha Nasre 5 years, 1 month ago

Given, 15cotA=8 CotA=8/15 CotA=AB/BC AB=8,BC=15 In triangle ABC, By Pythagoras theorem, AC^2=AB^2+BC^2 =(8)^2+(15)^2 =64+225 =289 AC=√289 AC=17 units SinA=BC/AC =15/17 SecA=AC/AB =17/8

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CBSE > Class 10 > Mathematics