Q: If cos θ = $${1\over \sqrt{10}}$$, then tan θ is equal to. – McqOptions

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1.	Q: If cos θ = $${1\over \sqrt{10}}$$, then tan θ is equal to.
A.	$$ {1\over \sqrt{3} } $$
B.	$$ {1\over 3 } $$
C.	$$ {\sqrt{3} } $$
D.	3
Answer» E.

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