Question

If sin Θ = 1 over 4 and tan Θ > 0, what is the value of cos Θ?

Answer 1

negative square root of 15
square root of 15
square root of 15 over 4
negative square root of 15 over 4

Answer 2

make a right triangle
sin = what ?
opposite adjacent hypotenuse ?

Answer 3

sin=1/4?

Answer 4

yes that's right but sin cosine and tan \[\rm tan = \frac{ \sin }{ \cos } = \frac{ \rm opposite }{ \rm adjacent }\]
\[\rm sin = \frac{ opposite }{ hypothunuse }\]
\[\rm cos = \frac{ adjacent }{ hypothunuse }\]