The following pie chart represents the percentage distribution of expenditure of a state’s budget. Study the pie chart and answer the question that follows.
Approximately how many degrees should be there in the central angle of the sector for agriculture expenditure?
If x = a secnθ, y = b tannθ, then:
\(\left(\frac{x}{a}\right)^{\frac{2}{n}}-\left(\frac{y}{b}\right)^{\frac{2}{n}}\) = 1
\(\left(\frac{x}{a}\right)^{\frac{2}{n}}+\left(\frac{y}{b}\right)^{\frac{2}{n}}\) = 1
\(\left(\frac{a}{x}\right)^{\frac{2}{n}}-\left(\frac{b}{y}\right)^{\frac{2}{n}}\) = 1
\(\left(\frac{a}{x}\right)^{\frac{2}{n}}+\left(\frac{b}{y}\right)^{\frac{2}{n}}\) = 1
The positive root of 4x2−1=0 is: