What are the values of a and b, if
\(
\begin{aligned}
2 \frac{\cos^{2}x - \sec^{2}x}{\tan^{2}x} = a + b \cos 2x
\end{aligned}
\)
The pue chart shows sales of 7 different companies. The toal sales are 3600. The sale of a particular company is shown in terms of degree with respect to the total sales of all 7 companies.
Which of the following statements are correct?
I. The ratio of average sale of a company P and Q to the average sale of T and U is 9:10
II. The difference between the total sale of comapny R and S and the sale of V is 1050.
The underlined word may have been spelt incorrectly, choose the appropriate option,
The ameteur sculptor received an award at the international sculpting competition.