If 3 sin2 A + 4 cos2 A - 3 = 0, then the value of cot A (where 0° ≤ θ ≤ 90°) is:
Mohan's income is 40% more than Shyam's income. Shyam's income is what percentage less than Mohan's income?
\(28\tfrac{2}{7}\%\)
\(28\tfrac{5}{7}\%\)
\(28\tfrac{3}{7}\%\)
\(28\tfrac{4}{7}\%\)
If 3x + 5y = 14 and xy = 6, then what is the value of 9x2 + 25y2 ?
A batsman in his 13th inning makes a score of 97 runs, thereby increasing his average score by 5. What is his average score after the 13th inning?
If â–³ABC ~â–³QPR,\(\frac{\operatorname{ar}(\triangle ABC)}{\operatorname{ar}(\triangle PQR)}=\frac{4}{9}\) ,AC=12, AB = 18cm and BC = 10cm, then PR(in cm) is equal to: