A particle moving in two dimensions satisfies the coupled differential equations of motion: dx/dt = x(t) + y(t) dy/dt = x(t) - y(t) with the initial condition x(0) = 0 and y(0) ≠ 0. What is the ratio of x(∞)y(∞) as t approaches infinity?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?