" 13."(x^(2))/(1+x^(2))

If x+(1)/(x)=13 , then the value of x^(2)+(1)/(x^(2)) is:

If x^(2)+(1)/(x^(2))=102, then x-(1)/(x)=8( b) 10 (c) 12 (d) 13

If f(x)=x^(3)+(1)/(x^(3))-4(x^(2)+(1)/(x^(2)))+13 then the value of f(2+sqrt(3))=

13) If (x+1)/(x^(2)(x+2))=(A)/(x)+(B)/(x^(2))+(C)/(x^(3))+(D)/(x^(4))+(E)/(x+2) then B+D+E=

int x^(13/2) (1+x^(5/2))^(1/2) dx = P(1+x^(5/2))^(7/2)+Q(1+x^(5/2))^(5/2) +R(1+x^(5/2))^(3/2)+C then P, Q ,R are

If the equation ((x)/(1+x^(2)))^(2)+a((x)/(1+x^(2)))+3=0 has exactly two real roots which are distinct, then the set of possible real values of a is ((-13)/(2),0) (b) (oo,-(13)/(2))((-13)/(2),(13)/(2))(d)((13)/(2),oo)

From a point on x+2y-7=0 tangents are drawn to curve 13(x^(2)+y^(2)-2x+1)=(2x+3y-1)^(2) are perpendicular then the point is (a)(19,13) (b) (-19,13) (c) (19,-13) (d)(-19,-13)

If f(x)={|x-3|, when x>=1 and (x^(2))/(4)-(3x)/(2)+(13)/(2), whenx <1 then correct statement is

If log_(2)(x^(2)+1)+log_(13)(x^(2)+1)=log_(2)(x^(2)+1)log_(13)(x^(2)+1)*(x!=0) then log_(7)(x^(2)+24) is equal to

int x^((13)/(2))(1+x^((5)/(2)))^((1)/(2))dx