SOLUTION: simplify the following expression by justifying each step:
cotA(secA-cosA)
Algebra.Com
Question 162252: simplify the following expression by justifying each step:
cotA(secA-cosA)
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
, distribute
*Note: Reciprocal Identities:
, subtract by getting common denominator
*Note: Pythagorean identities:
*Note: Quotient Identites: -->
So,
, ANSWER
Thank you,
Jojo
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