I have a trig identity proving question: (1 - sin(x))/(1 + sin(x)) = tan(x) + 1/cos(x) by multiplying 1 - sin(x) on left side doesn't seems work. Anyone can help. Thanks in advanced.
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Hello, ellicott! Are there typos? The statement is not true. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I found this identity . . . . . . . . . Therefore: .
Thanks Soroban for correction of my typo. In general, what is the method to test true identity? Do you have to use a particular angle such as pi/6? appreciate your helps,
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