integral of tan 5x
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★Heya★
Integration of Tan 5x dx
=>
Integration of ( Sin5x /Cos 5x )dx
Put Cos 5x = z
- 5 Sin 5x = dz/dx
=>
integration of -5/z dz
=>
-5 × log ( 5z ) + c
=>
-5 × log ( 5 Cos 5x ) + c
where c is called constant of integration.
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