Askor stated: I thought trigonometric substitution only perform if there is out there a square root which include ##sqrt x^two + two ##. No. Trig substitution is helpful In case you have the sum or difference of squared phrases - they need not be inside a sq. root. The catering https://gabletoppak.com/why-gabletop-cartons-outshine-pet-bottles-for-branding-opportunities/