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A: int (1)/(5+4 sin x)dx=(2)/(3) Tan^(-1...

A: `int (1)/(5+4 sin x)dx=(2)/(3) Tan^(-1)((4+5tan (x//2))/(3))+c`
R : If `a gt 0, a gt b`, then `int (dx)/(a+b sin x)=(2)/(sqrt(a^(2)-b^(2)))Tan^(-1)[(b+a tan (x//2))/(sqrt(a^(2)-b^(2)))]+c`

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is not correct explanation of A

C

A is true but R is false

D

A is false but R is true

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