As $\theta$ increases from $0^{\circ}$ to $90^{\circ}$, the value of $\cos \theta$ :-
As $\theta$ increases from $0^{\circ}$ to $90^{\circ}$, the value of $\cos \theta$ :-
- A
Increases
- B
Decreases
- C
Remains constant
- D
First decreases then increases.
Similar Questions
A particle moves along the straight line $y=3 x+5$. Which coordinate changes at a faster rate?
A particle moves along the straight line $y=3 x+5$. Which coordinate changes at a faster rate?
Two particles $A$ and $B$ are moving in $X Y$-plane.
Their positions vary with time $t$ according to relation :
$x_A(t)=3 t, \quad x_B(t)=6$
$y_A(t)=t, \quad y_B(t)=2+3 t^2$
Distance between two particles at $t =1$ is :
Two particles $A$ and $B$ are moving in $X Y$-plane.
Their positions vary with time $t$ according to relation :
$x_A(t)=3 t, \quad x_B(t)=6$
$y_A(t)=t, \quad y_B(t)=2+3 t^2$
Distance between two particles at $t =1$ is :
If $y = {1 \over {a - z}},$then ${{dz} \over {dy}} = $
The slope of graph as shown in figure at points $1,2$ and $3$ is $m_1, m_2$ and $m_3$ respectively then
The slope of graph as shown in figure at points $1,2$ and $3$ is $m_1, m_2$ and $m_3$ respectively then
The greatest value of the function $-5 \sin \theta+12 \cos \theta$ is
The greatest value of the function $-5 \sin \theta+12 \cos \theta$ is