What is the value of sin2 60 + tan2 45 + sec2 45 - cosec2 30 ?
What is the area (in m², up to 1 place of decimal) of an equilateral triangular field of sides 8.5 m?
\(\dfrac{18.1}{\sqrt{3}}\)
\(18.1\sqrt{3}\)
\(\dfrac{72.25}{\sqrt{3}}\)
\(72.25\sqrt{3}\)
A's salary increases in the ratio 8 : 11. If his new salary is ₹33,000, then what was his original salary (in ₹)?
Students of Primary, Middle, Secondary and Sr. Secondary classes collected donation for a Relief Fund as shown in the pie chart. If the donation collected from Middle classes was ₹6,750, then what would be the total amount of money collected by Secondary and Sr. Secondary classes?
If 2 tan x + 3 cot x = 5, then the value of 4 tan2 x + 9 cot2 x is: