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IKMC 2006 - Grades 11-12 - Self-study Question 10

IKMC · IKMC 2006 - Grades 11-12 - Self-study

Question 10

$AB=1$, $\angle ABC=\angle ACD=90^\circ$, $\angle CAB=\angle DAC=\theta$. Find AD.

Question illustration
  1. $\cos\theta+\tan\theta$
  2. $1/\cos2\theta$
  3. $\cos^2\theta$
  4. $\cos2\theta$
  5. $1/\cos^2\theta$