Trigonometry - Quant/Math - CAT 2007
Question 4 the day:
May 20, 2005
The question for the day is a trigonometry question.
Question:
- What is the value of (1-CosA) / (1+CosA) given that tan A = ¾ ?
-
(1) 1/4
(2) 9/16
(3) 1/9
(4) 1/3
Correct choice (3). Correct Answer - (1/9)
Solution:
We know that tan A =  .
Therefore, opposite side = 3, adjacent side = 4 and the hypotenuse = = 5.
Hence, cos A = 
Therefore, 
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