List of top Questions asked in KCET- 2023

If \(u=\sin^{-1}(\frac{2x}{1+x^2})\) and \(v=\tan^{-1}(\frac{2x}{1-x^2})\) then \(\frac{du}{dv}\) is
If \(\Delta=\begin{vmatrix}     1 & a & a^2 \\     1 & b & b^2 \\     1 & c & c^2 \end{vmatrix}\) and \(\Delta_1=\begin{vmatrix}     1 & 1 & 1 \\     bc & ca & ab \\     a & b & c \end{vmatrix}\) then
The area of a triangle with vertices(-3,0),(3, 0) and (0, k) is 9 sq.units, the value of k is
If A =\(\begin{bmatrix}   2-k & 2 \\     1 & 3-k \end{bmatrix}\) is a singular matrix, then the value of 5k - k2 is equal to
The value of
\(\cot^{-1}[\frac{\sqrt{1-\sin x}+\sqrt{1+\sin x}}{\sqrt{1-\sin x}-\sqrt{1+\sin x}}]\) where x ∈ \((0,\frac{\pi}{4})\) is
The contrapositive of the statement
“If two lines do not intersect in the same plane then they are parallel.” is
Let the relation R be defined in N by aRb if 3a + 2b = 27 then R is
Let f : R→R be defined by f(x)= 3x2-5 and g : R→R by g(x)=\(\frac{x}{x^2+1}\) then gof is
f : R → R and g : [0, ∞) → R are defined by f(x) = x2 and g(x)=\(\sqrt{x}\). Which one of the following is not true ?
The mean of 100 observations is 50 and their standard deviation is 5. Then the sum of squares of all observations is
If n is even and the middle term in the expansion of \((x^2+\frac{1}{x})^n\) is 924 x6, then n is equal to
If \(\lim\limits_{x \rightarrow 0} \frac{\sin(2+x)-\sin(2-x)}{x}\)= A cos B, then the values of A and B respectively are
The distance between the foci of a hyperbola is 16 and its eccentricity is \(\sqrt2\). Its equation is
A line passes through (2, 2) and is perpendicular to the line 3x + y = 3. Its y-intercept is
Identify A, B and C in the sequence :
Chemical Equation