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Grade: 12
        
please can you tell me
How intigration of tanx dx=log|secx|+c
 
2 years ago

Answers : (1)

Neelam Papanai
27 Points
							Here tanx=sinx/cosxNow let cosx=tSo -sinx dx=dtSoInte of tanx = -dt/t                      = -log tNow log a to power b=b log aSo -log t= log of 1/tThat is log of 1/cos xThat is sec x
						
2 years ago
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