If 3 cosec A = 7, then what is the value of cos A tan A ?
\(\frac{2\sqrt{10}}{7}\)
\(\frac{3}{7}\)
\(\frac{4}{7}\)
\(\frac{\sqrt{10}}{7}\)
The bar graph given below shows the income and expenditure of a company in five years.
What is the ratio of total income in year M and N to the total expenditure in year J, K and L ?
What is the value of (x + 1) (x2 - x + 1) ?