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OpenStudy (anonymous):
Proving trigonometric equation.. ((sin(x))/(1-cos(x))) + ((sin(x))/(1+cos(x))) =2csc(x)
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OpenStudy (luigi0210):
What have you tried so far?
OpenStudy (anonymous):
I honestly have no idea where to begin. I know I must use one of the Pythagorean Identities
OpenStudy (luigi0210):
Hmm, try getting common denominators
OpenStudy (ribhu):
step 1 simply add the fractions by taking LCM of left hand side.
OpenStudy (ribhu):
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