`(1+a)/(a^(1/2)+a^(-1/2))-(a^(1/2)+a^(-1/2))/(1+a)+a^(-1/2)`
`(a) 1/sqrta`
`(b) sqrta`
`(c) sqrta+1`
`(d) sqrta-1`

(sqrta + sqrtb)^2 = ?

sqrt(a +b -2 sqrt(ab)) is ____ where sqrta gt sqrtb

[{(-1/3)^2}^(-2)]^(-1) = (a) 1/(81) (b) 1/9 (c) -1/(81) (d) -1/9

If (1)/(a)+(1)/(c )=(1)/(2b-a)+(1)/(2b-c) , then

If y = tan^(-1) ((sqrta + sqrtx)/(1 - sqrt(ax))) " then " (dy)/(dx) = ?

lim_(xto0)(a^x-1)/(sqrt(a+x)-sqrta) is

The value of ((1)/(2)-:(1)/(2)backslash of(1)/(2))/((1)/(2)+(1)/(2)backslash of(1)/(2)) is (a) 1 (b) 1(1)/(3) (c) 2(2)/(3)(d)3

The simplified form of (((a+1)^2/(a-1)^2+3)/((a-1)^2/(a+1)^2+3))/((a^3+1)/(a^3-1)-(2a)/(a-1)] is: a).a-1 (b).1-a (c).-1 (d).None of these

If omega=(-1+sqrt(-3))/(2) , then (1)/(1+omega)+(1)/(1+omega^(2))= (a) 0 (b) - 1 (c) 1 (d) 2w

If (sin^(-1) a)^(2) +( cos^(-1) b)^(2) + ( sec^(-1)c)^(2) + ( cosec^(-1) d)^(2) = ( 5pi^(2))/2 " , then the value of " ( sin^(-1)a)^(2) - ( cos^(-1)b) ^(2) + ( sec^(-1)c)^(2) - ( cosec^(-1)d)^(2)