The average monthly income of A and B is Rs.7000. The average monthly income of B and C is Rs.7750 and the average monthly income of C and A is Rs.6750. What is the monthly income of B ?
If 3tanθ = 2, what is the value of (3sinθ - cosθ) / (3sinθ + cosθ) ?
If \(\sqrt{3}\tan^{2}\theta - 4\tan\theta + \sqrt{3} = 0\), then what is the value of tan2θ + cot2θ ?
The length of the diagnols of a rhombus is 40cm and 60cm. What is the length of the side of the rhombus ?
\(40\sqrt{13}~\mathrm{cm}\)
\(10\sqrt{13}~\mathrm{cm}\)
\(20\sqrt{3}~\mathrm{cm}\)
\(50\sqrt{3}~\mathrm{cm}\)