HP50g or other: U. of Houston calc exams

08102015, 12:07 AM
(This post was last modified: 08102015 12:39 AM by CR Haeger.)
Post: #20




RE: HP50g or other: U. of Houston calc exams
Its been a while, but I think you can reduce to the a terms as follows:
A. 2x 3y = 6  7a^2 Parabolic surface? B. 3x + 5y = 7+ 2a Plane C. 7x +11y = 4  6a Plane B*7/3 +C: 7x + (35/3)y = (49/3) + (14/3)a +7x +11y = 4  6a D. 0x +(68/3)y = (61/3)  (4/3)a A + B*⅔:: +2x 3y = 6  7a^2 2x (10/3)y = (14/3) +(4/3)a E. 0x +(⅓)y = (32/3) 7a^2 +(4/3)a D  68*E: (68/3)y = (61/3)  (4/3)a (68/3)y = (68*32/3) 68*(7a^2) +(68*4/3)a F. 0y = 705 +476a^2 92a Ti36x [poly solv] for the quadratic (F) yielded a = 1.123... or +1.317.... Back solving for x = 0.0214 and y = 0.963 for a=1.123... If this is correct, Ill have a drink and if not, two. I expect the 50g or Prime could make quick work of this. 

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