$tan\theta$ =$\frac{-3}{4}$ and $\theta$ lies in the second quadrant, then sin$\theta$ is equal to,
1). $\frac{2}{5}$
2). $\frac{2}{3}$
3). $\frac{3}{5}$
4). $\frac{4}{5}$
If [2x 3| $\begin{bmatrix}1& 2 \\-3& 0 \end{bmatrix}\begin{bmatrix}x \\8 \end{bmatrix}$ = 0, the value of x is,
1). $\frac{23}{2}$
2). $\frac{13}{2}$
3). $\frac{-13}{2}$
4). $\frac{-23}{2}$
If/: R —> R is defined by f(x) = |x|, then
1). $f^{-1}$ = $\frac{1}{|x|}$
2). $f^{-1}$ = -x
3). $f^{-1}$ = $\frac{1}{x}$
4). the function $f^{-1}$ doesnt exist
An odd degree polynomial equation has
1). At least one real root
2). No real root
3). Only one real root
4). None of these
If altitudes of a triangle are In A.P. then sides of the triangle
arc in
1). A.P.
2). G.P.
3). H.P
4). None of these