Evaluate\

\\\\int_C (yhat()+zhat()+xhat(k))*dr_()

\ along

C

: a straight line from

(1,2,3)

to

(2,1,1)

.\ Please use the straight-line formula provided. Thank you.\

r(t)=tr(b)+(1-t)r(a)

Evaluate C(y^+z^+xk^)dr along C : a straight line from (1,2,3) to (2,1,1). Please use the straight-line formula provided. Thank you. r(t)=tr(b)+(1t)r(a) Evaluate C(y^+z^+xk^)dr along C : a straight line from (1,2,3) to (2,1,1). Please use the straight-line formula provided. Thank you. r(t)=tr(b)+(1t)r(a)