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Could you please tell whether this answer is correct or not? If it is wrong, tell the correct answer.

Could you please tell whether this answer is correct or not?  If it is wrong, tell the correct answer.

Question Image
Grade:12

1 Answers

Arun
25763 Points
one year ago
Dear student
 
integration of sec^4x is wrong, except this all are correct
 
integration of sec^4x = sec^2 x ( 1 + tan^2x)  = sec^2 x dx + sec^2 x tan^2 x dx
 
now integration of sec^2x = tan x
and in sec^2 x tan^2 x, take tan^2 x as t 

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