If tan α = 2, then the value of $$ {cosec^2 α - sec^2 α}\over{cosec^2 α + sec^2 α} $$ is :
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Q:
If tan α = 2, then the value of $$ {cosec^2 α - sec^2 α}\over{cosec^2 α + sec^2 α} $$ is :
- 1$$ -{15\over 9} $$false
- 2$$ {3\over 5} $$false
- 3$$ -{3\over 5} $$true
- 4$$ {17\over 5} $$false
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