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If vec(a)=hat(i)+hat(i)+hat(k).vec(b)=ha...

If `vec(a)=hat(i)+hat(i)+hat(k).vec(b)=hat(i)andvec(c)=c_(1)hat(i)+c_(2)hat(j)+c_(3)hat(k).`" If "c_(1)=1andc_(2)=2" find "c_(3)" such that "vec(a),vec(b)andvec(c)" are coplanar. "` depends on neither x nor y .

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