2010 · Q43
If α is an acute angle and sin α = √((x-1)/2x), then what is tan α equal to ?
Elementary MathematicsTrigonometry
- A√((x-1)/(x+1))
- B√((x+1)/(x-1))
- C√(x²-1)
- D√(x²+1)
Explanation
tanα=sinα/cosα=√((x-1)/(x+1)).
If α is an acute angle and sin α = √((x-1)/2x), then what is tan α equal to ?
Explanation
tanα=sinα/cosα=√((x-1)/(x+1)).