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Use the fundamental identities to fully simplify the expression.# 13 1 + tan (?)/csc (?)+ sin (0) +1/ sec (?)Follow the given steps to simplify, BUT make sure to enter the full equivalent expression on each step.Step 1: Use Pythagorean Identities to simplify the first term:Step 2: Use Reciprocal Identities to simplify the first term and third term;Get rid of complex fraction if necessary:Step 3: Simplify by Pythagorean Identities to combine the second and third terms:Step 4: Rewrite the first term by Quotient Identities:Step 5: Simplify by Pythagorean Identities:
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