MCQ
tan (90-θ) = ?
  • A
    sin θ
  • B
    cos θ
  • cot θ
  • D
    tan θ

Answer

Correct option: C.
cot θ
cot θ

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The roots of the quadratic equation $2x^2 - x - 6 = 0$ are:
In a quadratic equation, $\alpha+\beta=-4$ and $\alpha \beta=-1$, then required equation is ______ .
The value of $k$ for which the system of equations has a unique solution, is: $kx - y = 2 , 6x - 2y = 3$
Match the following columns.
 
Column $I$
 
Column $II$
$(a)$ A man goes $10m$ due east and then $20\ m$ due north. His distance from the starting point is $.... m.$ $(p)$ $25\sqrt{3}$
$(b)$ In an equilateral triangle with each side $10\ cm$, the altitude is $..... cm.$ $(q)$ $5\sqrt{3}$
$(c)$ The area of an equilateral triangle having each side $10\ cm$ is $.... cm^2$. $(r)$ $10\sqrt{5}$
$(d)$
The length of diagonal of a rectangle having length $8m$ and breadth $6\ m$ is $.... m.$
 
$(s)$ $10$
The correct answer is:
$a................$
$b................$
$c................$
$d................$
 
$\tan5^\circ\tan25^\circ\tan30^\circ\tan65^\circ\tan85^\circ=?$
The diameter of the base of a cone is $42\ cm$ and its volume is $12936\ cm^3$. Its height is:
If the radius of the base of a right circular cylinder is halved, keeping the height the same, then the ratio of the volume of the cylinder thus obtained to the volume of orginal cylinder is:
If $\alpha,\ \beta,\ \gamma$ be the zeros of the polynomial p(x) such that $(\alpha+\beta+\gamma)=3,\ (\alpha\beta+\beta\gamma+\gamma\alpha)=-10$ and $\alpha\beta\gamma=-24$ then $p(x) = ?$
The value of $\Big(\sin^230^\circ\cos^245^\circ+4\tan^230^\circ+\frac{1}{2}\sin^290^\circ+\frac{1}{8}\cot^260^\circ\Big)=?$
If the length of diagonal of square is $\sqrt{2}$ then what is the length of each side ?