Use the given conditions. cos(u) = 5/13,    0 < u < ?/2 (a) Determine the quadrant in which u/2 lies. Quadrant IQuadrant II    Quadrant IIIQuadrant IV (b) Find the exact values of sin(u/2),cos(u/2), and tan(u/2)  using the half-angle formulas. sin(u/2)  =        cos(u/2)  =  ​     tan(u/2)

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter73: Achievement Review—section Seven
Section: Chapter Questions
Problem 11AR
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Use the given conditions.

cos(u) = 5/13,    0 < u < ?/2
(a) Determine the quadrant in which u/2 lies.
Quadrant IQuadrant II    Quadrant IIIQuadrant IV

(b) Find the exact values of sin(u/2),cos(u/2), and tan(u/2)
 using the half-angle formulas.
sin(u/2)  = 
 
 
 
cos(u/2)  = 
 
 
tan(u/2)  
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