Question

6 Give the absolute value of
603 4-7 () - Gou) O SVE
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Answer 1

Answer: question invalid

Step-by-step explanation:

Answer 2

Answer:

Hey here is yor answer_______________

let A+B+C = 180° ,

we have show that,

cot A cotB + cotBcotC +cotC cotA=1

since A+B+C = 180°

implies A + B = 180°- C

implies tan(A + B) = tan(180°- C)

using trigonometry formulae 

tan(A + B) = -tan(C)

therefore

[tanA +tanB] / [1-tanAtanB ] = -tanC

cross multiplying

tanA +tanB = -tanC[1-tanAtanB ]

tanA +tanB = -tanC +tanAtanBtanC

or

tanA +tanB + tanC = tanAtanBtanC

divide each term with tanAtanBtanC we get

cot A cotB + cotBcotC +cotC cotA=1

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