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what is the value of (1-cosA)/(1+cosA) given that tanA=3/4

9/16 1/9 1/4

Your Answer

tanA = 3/4 so its simple its right angle triangle  so the hypotenuse  of this triangle is 5 
 so cosA =4/5
(1-4/5)
(1+4/5)
1/5*5/9
so ans is 1/9
 

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