Question

Given 15Cot A=8,find Sec A ?
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Answer 1

Explanation:

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15Cot A=8,

Therefore,

Cot A=8/15

By Pythagoras theorem

We can find third side

( Hypo) sq=(S1) sq+(S2) sq

${hypo}^{2} = {8}^{2} + {15}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: = 64 + 225 \\ hypo = 17$

Sec A =

$sec \: a = \frac{hypotenuse}{ \: adjacent}$

$= > \frac{17}{8}$

Answer 2

Explanation:

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ans=17/8.