11. (10 pts) Prove the identity csc(0)- sin(@) = cot(@)cos(@). HINT: Rewrite each side of the expression using sines and cosines, simplify and apply a
11. (10 pts) Prove the identity csc(0)- sin(@) = cot(@)cos(@). HINT: Rewrite each side of the expression using sines and cosines, simplify and apply a Pythagorean identity. Show work.12. (10 pts) (work optional) (a) Find the exact value of arcsec(2). (b) Find the exact value of tan arcsin (c) Find the exact value of arcsin sin (d) Find the exact value of arccos ( tan-). (e) Using a calculator, find arcsin(0.9527), rounded to four decimal places
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