If 3cotA = 4tanA and A is an acute angle, then what will be the value of sec A?
\(\frac{\sqrt{7}}{2}\)
\(\frac{\sqrt{21}}{3}\)
\(\frac{1}{\sqrt{3}}\)
\(\frac{1}{2}\)
What is the value of \(\frac{\cos^{2}20^{\circ} + \cos^{2}70^{\circ}}{\sin^{2}90^{\circ}} - \tan^{2}45^{\circ}\ ?\)
Simplify the following expression:
\(\frac{3\frac{2}{3}-5\frac{7}{9}\div\frac{1}{3}\times1\frac{2}{13}}{\frac{2}{3}\ \text{of}\ 1\frac{1}{3}\div\frac{1}{3}}\)
\(-2\frac{77}{104}\)
\(-29\frac{2}{5}\)
\(-6\frac{1}{8}\)
\(-14\frac{1}{4}\)
A customer availed a 10% discount on the purchase of a table and paid ā¹4,950 for it. How much money would he have saved if he had bargained to get 12% discount?
If \(x - \frac{1}{x} = 2\sqrt{2}\) , then what will be the value of \(x^{3} - \frac{1}{x^{3}}\ ?\)
If xā“ − 12x² + 1 = 0, then what will be the value of \(x^{4} + \frac{1}{x^{4}}\ ?\)