Can you solve these problems

1.

The yZ-traces of the surface & + 14y- - 162- = 58 are parabolas. O True O FalseUse the formula K = IF' (t ) x F" (t)1 IF'(1) 3 to find the curvature & of 7(t) =. 12v65 K= 36 + 65+2 ) 3/2 12 65 O K= V 36 + 260+2 6:/65 O K= (36 + 260+2 ) 3/2 12:65 K= O (36 + 260+2 ) 3/2Dz where 2 = 8sin(cy) , I = te's, and y = 31 -103 Find Ot = 8(310 - 10s) cos(teos (310 - 10s8))( s) + 8(te s) cos(te s (310 - 10s8))(310) O = 8(310 - 10s) cos(teos (310 - 10s8))( s) + 8(tels) cos(te s (310 - 10s8))(18+5) O = 8(310 - 10s8) cos(te s(310 - 10s8))(tels) + 8(te ) cos(te s (310 - 10s8)) (1815) O 8z = 8 cos (te s (310 - 108))(e ) + 8cos(te (310 - 10s8))(1815) O