If int 1/(1+sinx)dx=tan(x/2+a)+b, then ...

If `int 1/(1+sinx)dx=tan(x/2+a)+b`, then 1) `a=-pi/4, b in R` 2) `a = pi/4, b in R` 3) `a =(5pi)/4, b in R` 4)none of these

If int 1/(1+sinx)dx=tan(x/2+a)+b, then 1) a=-pi/4, b in R 2) a = pi/...
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int(1)/(1+sin x)dx=tan((x)/(2)+a)+b, then 1)a=-(pi)/(4),b in R2)a=(pi)...
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tan^(-1)(x/y)-tan^(-1)((x-y)/(x+y)) is (A) pi/2 (B) pi/3 (C) pi/4 ...
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The range of the function tan^(-1)((x^2+1)/(x^2+sqrt(3))),x in R is ...
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If a=sum(r=1)^oo(1/r)^2, b=sum(r=1)^oo1/((2r-1)^2), then a/b= (A) 5/4 ...
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if tan ^(2)""(pi-A)/(4)+tan^(2)""(pi-B)/(4) + tan^(2)""(pi-C)/(4) =1, ...
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If x=tan ((pi)/(4)+A)+tan(B-(pi)/(4)) and y=tan ((pi)/(4)+A)*tan (B-(p...
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tan((pi)/(4) +(1)/(2)"cos"^(-1)(a)/(b))+ tan((pi)/(4) - (1)/(2)"cos"^(...
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If int (1)/(5 + 4 sinx ) dx = A tan^(-1) [B(5tanx /2+4] + then (A,B)=
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