" The value of "int_(pi/4)^(3 pi/4)(x)/(1+sin x)dx" is equal to "

The value of int_(pi//4)^(3pi//4) (x)/(1+sin x) dx is equal to

The value of int_(pi/4)^((3pi)/4)(cos x)/(1-cos x)dx is equal to (k-(pi)/(2)) then k=

int_(pi//4)^(3pi//4) (x)/(1+sin x)dx=

int_(pi//4)^(3pi//4) (x)/(1+sin x) dx=

The value of int_(-pi//4)^(pi//4) x^(3) sin^(4) x dx is equal to

The value of int_(-pi/2)^( pi/2)(dx)/([x]+[sin x]+4) is equal to ( a )(3)/(20)(4 pi-3)( b )(3)/(10)(4 pi-3)(c)(1)/(12)(7 pi-5)(d)(1)/(12)(7 pi-3)

int_(pi//4)^(3pi//4)(dx)/(1+cos x)=

int_(-pi//4)^(pi//4) dx/(1+sin x)=