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Application of Derivatives., Q. 18 the Suma aof the dengths, of a hypotenuse, side of niqht= angled triengle is qwer,, area of the 'triongle' le, maximum, and a, Show that the, when the angle between them is (T/s)., CBSE 2 0, Let X+Y=k,, where x =, and, Y =, : AC., Let O be the angle betweens them,, the bose and the. hypołenuse ., of the briangle ·, 90, let A be ths, area, A = - X AB X BC ., AB?+ Be?: AC, 2., AB'= AC?-BC?, 2., y2-x 2, X4 Y=K,, ((k-1)*-x* ., '. Y= K-X., 2, - 2kx3, ew formula, 1