Sin theta -cos theta +1/sin theta + cos theta -1 = 1 /sec theta - tan theta

Dear student 
Your question is not clear and appears to be incomplete as you have not specified whether only sin thetha is in denominator or (sin theta + cos theta -1) is in denominator. Please be a little specific so that we can help in more meaningful ways. Looking forward to hear from you again. 
Regards

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