Askor stated: I thought trigonometric substitution only operate if there is offered a square root such as ##sqrt x^two + two ##. No. Trig substitution is useful In case you have the sum or big difference of squared conditions - they need not be within a sq. root. The life https://gabletoppak.com/choosing-between-gable-top-packaging-and-plastic-bottles-for-your-beverage-business/