The mean proportional of 8a2 and \(\dfrac{18}{a^4}\) , where a is a positive number, is _______.
If \(\dfrac{\sec \alpha + \tan \alpha}{\sec \alpha - \tan \alpha} = \dfrac{7}{4}\) then find the value of cosec α.
\(\dfrac{1}{3}\)
\(\dfrac{1}{11}\)
\(\dfrac{11}{3}\)
\(\dfrac{3}{11}\)
If the length, breadth, and height of a cuboid is 8 cm, 4 cm, and 6 cm, respectively, then the volume (in cm3) of the cuboid is:
The following table shows the sale (in thousands) of different types of helmets by a shop over the given years.
| Type of Helmet/Year | 1998 | 1999 | 2000 | 2001 | 2002 |
| A | 78 | 45 | 56 | 63 | 88 |
| B | 58 | 64 | 78 | 60 | 68 |
| C | 46 | 54 | 58 | 64 | 68 |
| D | 76 | 65 | 72 | 78 | 82 |
| E | 87 | 66 | 74 | 80 | 84 |
What was the percentage increase in the sale of Helmets C in 2002 as compared to that in 1999?
Study the given graph and answer the question that follows.
The graph shows the production of refrigerators by three companies in 2018. 
The refrigerators produced by company C form what percentage of the total production?
If A is an acute angle, which of the following is equal to \(\dfrac{\sin A}{1 + \cos A} \, ?\)
\(\dfrac{1 - \cos A}{\sin A}\)
\(\dfrac{1 + \cos A}{\sin A}\)
\(\dfrac{1 - \sin A}{\cos A}\)
\(\dfrac{1 + \sin A}{\cos A}\)