1) both f(x) and g(x) are increasing functions 2) both f(x) and g(x) are decreasing functions 3) f(x) is increasing function and g(x) is an... View Article
1) x sin φ + y cos φ = a 2) y cos φ − x sin φ = a cos 2φ 3) x cos φ + y sin φ = a sin 2 φ 4) none of these Solution: (2) y cos φ − x... View Article