note : a=1, b=0, c=6. its urgent. plz do as soon as possible

a) Find the partial derivative of the function with respect to each variable. G(c, h, k,m, q)=kTm+ cm +% b) Find the directional derivative of the function yz + ln(zx) at h(x, y, z) = cos cos (xy) + e P0(1,0,i) in the direction of i7 = 1113+ B} + Ck\". And the direction in which the function increases most rapidly