20o
40o
90o
140o
Correct answer is B
Exterior angle \(=\frac{360}{n}\) where n = no of sides
\(=\frac{360}{9}=40^{\circ}\)
If y = (1 - 2x)\(^3\), find the value of dy/dx at x = -1 ...
A regular polygon of n sides has each exterior angle to 45o. Find the value of n...
\(\begin{vmatrix} -2 & 1 & 1 \\ 2 & 1 & k \\1 & 3 & -1 \end{vmatrix}\) = 23...
If y = x2 - \(\frac{1}{x}\), find \(\frac{\delta y}{\delta x}\)...
Solve the logarithmic equation: \(log_2 (6 - x) = 3 - log_2 x\)...
From the venn diagram above, the complement of the set P\(\cap\)Q is given by...
Evaluate \(\frac{(0.14^2 \times 0.275)}{7(0.02)}\) to 3 decimal places. ...
Make t the subject of formula S = ut + \(\frac{1}{2} at^2\)...