j199216 j199216

23-08-2016
Mathematics

contestada

let alpha be an angle in the quadrant 3 such as cos alpha -5/6 what are csc alpha and cot alpha?

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KrystalStudy327 KrystalStudy327

23-08-2016

Cos=x/r [Sec= r/x] Sin=y/r [Csc= r/y] Tan=y/x [Cot= x/y] . x^2 + y^2= r^2. these are the formulas you need. -5^2 = 25 6^2=36 36-25= 11. -sqrt11 is your y. so CSC alpha is -sqrt11/6 and COT alpha is -5/-squareroot11.

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