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If int1/(("s i n x"+4)("sin"-1))"dx"="A"...

If `int1/(("s i n x"+4)("sin"-1))"dx"="A"/(tan"x"/2-1)+"B t a n"^(-1)"f"("x")+"c"` then `A=2/5` b. `B=-2/(5sqrt(15))` c. `f(x)=(4t a n x+1)/5` d. `f(x)=(4tan=x/2+1)/(15)`

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