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Grade: 10

                        

Tan thita/secthita-1+tan thita/secthita+1=2cosecthita

2 years ago

Answers : (1)

Shashank Singh
askIITians Faculty
57 Points
							tan thita(sec thita +1)/(sec^2thita -1) + tan thita (secthita-1)/ (sec^2thita-1)
(tanthita secthita + tan thita + tanthta sec thita – tanthita)/tan^2thita
= 2secthita/tanthita
=2/sinthita= 2cosec thita...... [hence proved]
2 years ago
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