Question: Please help me with these questions 7. Angles. Find the acute angle between: (a) the lines x3=2y,z=1 and x=7,y2=z5 (b) the planes 2x+y+3z=0 and 3x2y+4z4=0

Please help me with these questions Please help me with these questions 7. Angles. Find the acute angle

7. Angles. Find the acute angle between: (a) the lines x3=2y,z=1 and x=7,y2=z5 (b) the planes 2x+y+3z=0 and 3x2y+4z4=0 (c) the line x=2t7,y=4t6,z=t5;tR and a vector normal to the plane x+2y4z=0

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