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Question
If $${\text{tan }}\alpha = 2,$$   then the value of $$\frac{{{\text{cose}}{{\text{c}}^2}\alpha - {\text{se}}{{\text{c}}^2}\alpha }}{{{\text{cose}}{{\text{c}}^2}\alpha + se{c^2}\alpha }}$$   is?
Options:
A .  $$ - \frac{5}{9}$$
B .  $$\frac{3}{5}$$
C .  $$ - \frac{3}{5}$$
D .  $$\frac{{17}}{5}$$
Answer: Option C

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