Mathematics
Shahram
2016-09-27 09:23:39
if cos θ = -2/5 and tan θ > 0, what is the value of sin θ?
ANSWERS
shakarabest
2016-09-27 14:16:55

[latex] frac{sin heta}{cos heta}=tan heta [/latex] [latex]cos heta= -frac{2}{5} [/latex] [latex]tan heta extgreater 0[/latex] Therefore [latex] frac{sin heta}{ -frac{2}{5} } extgreater 0[/latex] [latex] -frac{5sin heta}{2} extgreater 0 [/latex] [latex]sin heta extless 0[/latex] Therefore [latex]sin heta[/latex] is any value less than 0

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