Askor reported: I believed trigonometric substitution only perform if there is on the market a square root including ##sqrt x^two + 2 ##. No. Trig substitution is useful In case you have the sum or distinction of squared conditions - they need not be within a sq. root. Uncover A https://gabletoppak.com/gabletop-pak-the-ideal-packaging-solution-for-dairy-products/