Askor said: I thought trigonometric substitution only get the job done if there is offered a sq. root for instance ##sqrt x^2 + two ##. No. Trig substitution is helpful When you have the sum or distinction of squared conditions - they need not be within a sq. root. Affect https://gabletoppak.com/how-i-integrated-branding-and-design-with-an-indian-paper-bottle-manufacturer/