A man gains10% by selling an article for a cetain price. If he sells it at double the price, then the profit made is
The selling price of 20 articles is equal to the cost price of 22 articles. The gain percentage is
The value of 1/(1+tan2θ) + 1/(1+cot2 θ) is
If tan θ = 3/4 and θ is acute, then cosec θ is equal to
If cos4 θ - sin4 θ = 2/3, then the value of 1-2 sin2 θ is
If tan ∝ = n tan β and sin ∝ Q = m sin β, then cos2 ∝ is