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OpenStudy (anonymous):
Prove that.... {1+cotx-sec(x+90)}{1+cotx+sec(x+90)}=2cotx I have tried solving this problem but am not getting the required answer.....
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OpenStudy (anonymous):
Try simplifying to sin and cos every time.
OpenStudy (anonymous):
Where are you at on the problem? Are you stuck on a step or just completely lost?
OpenStudy (anonymous):
Completely lost i guess..... I am getting 1+2cotx+cot^2x-cosec^2x
OpenStudy (anonymous):
Ya i got the answer.....
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