tan β = 4
cot β = 1/4
FIND cos β
A.1/4
B. 4
C. None of these
D.√17/4
E.√17/17
F.4/17 (√17)

Question

tan β = 4
cot β = 1/4
FIND cos β
A.1/4
B. 4
C. None of these
D.√17/4
E.√17/17
F.4/17 (√17)

terenzreignz · Answer

The key here is understanding the relationship between these trigonometric ratios and the cartesian plane, in particular, their graphs....

Remember that the trigonometric ratios relate THREE different parts of a right triangle, pairwise.  The opposite side, adjacent side, and the hypotenuse.
Which two of these three does the ratio TANGENT relate?

primeralph · Answer

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