For the parabola \( y^2 = -12x \), the equation of the directrix is \( x = a \). The value of \( a \) is:
The equation of the hyperbola with vertices at
is:
The following determinant is equal to:
The function \( f(x) \) is given by:
The function is:
The local minimum value of the function \[ f(x) = 3 + |x|, \quad x \in \mathbb{R} \] is:
The value of the integral \[ \int_0^{\frac{\pi}{2}} \frac{\sqrt{\sin x}}{\sqrt{\sin x} + \sqrt{\cos x}} \, dx \] is:
How many students have got 60% or more marks in all the subjects?
Two statements are given followed by three conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: 1. All utensils are spoons. 2. All bowls are spoons. Conclusions: I. No utensil is a bowl. II. Some utensils are bowls. III. No spoon is a utensil.