Calculus 3 :

Section 10.5: Problem 21 (1 point) Results for this submission Entered Answer Preview Result Message 0 correct 1 correct O correct incorrect incorrect Variable 'o' is not defined in this context incorrect incorrect correct -3 -3 incorrect At least one of the answers above is NOT correct. Consider the planes 31 + ly + 2z = 1 and 32 + 2z = 0. (A) Find the unique point P on the y-axis which is on both planes. ( 0 . 1 0 (B) Find a unit vector u with positive first coordinate that is parallel to both planes. 1 2 i+ oj + 3 k (C) Use parts (A) and (B) to find a vector equation for the line of intersection of the two planes. r(t) = 2 i + 1 j+ -3 k Note: You can earn partial credit on this problem. Preview My Answers Submit AnswersSection 10.7: Problem 11 (1 point) Find the parametric equations for the tangent line to the curve 1=t'- 1,y=+ +1,2=+5 at the point (0, 2, 1). Use the variable t for your parameter.Section 10.7: Problem 14 (1 point) Find a vector parametrization of the curve r = -32 in the xz-plane. Use t as the parameter in your answer. T (t)Section 10.7: Problem 15 (1 point) Are the following statements true or false? 1. The line parametrization is parallel to the x-axis. 2. A parametrization of the graph of y = In (x) for > > 0 is given by = = e, y = t for -co