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Elementary,Middle School,High School,College,University,PHD
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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
B. The following are all valid identities. Prove
them, algelnirailzallyr and list the reasons or
explanations for each step. a. tanx + EDtX =I SEE XEEE X 1+5Mx
CDEX b. secx +tanx - cosx+sinx 1+ Esin xoosx EDSX- sinx cos2 x— sin2 x 1 1
_ + _ =Esec2x
1+5ll‘IX 1-5ll'lX cl.
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