- A1 + sec A cosec A
- Bsec A cosec A - 1
- Ctan A + cot A
- Dsin A + cos A
Step-by-Step Solution
Standard identity: tan A/(1 - cot A) + cot A/(1 - tan A) = 1 + sec A cosec A = 1 + tan A + cot A.
Answer: A) 1 + sec A cosec A
A worksheet asks to simplify .
Which expression equals this sum?
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