Recent content by urazi

and thank you very much for your patience to guide me...

thank you very much to sammy and ray. and all who respond...i have solved the problem :) :)

sammy am i doing it right?...sorry for troubling you 1.891cos^2= - 0.75 c^2 ----(1) 1.891sin^2= - 0.25 c^2 +2.25------ (2) adding 1 to 2 1.891 (1) = - 0.75 c^2 - 0.25 c^2 +2.25 C^2-0.359 =0

opss no i 'm using your way i get C^2 = -0.718

Hai sammy, i have try using your way i got theta =46 and C =1.1 however the answer i should get is theta = 40.9 and C is 1.2 TQ

yes the equation should use 1.5 rather than 15

thank you, yes the equation should be 1.5 not 15 .

thank you buzz, yes, i have check again that 15 is should be 1.5 if not i will not get = 0 for the second equation i have try and i get theta = 56 and C = 0.88 using your solution, before this i have try and get theta 46 and C=0.69 however the ans i should get is theta = 40.9 and C =1.2

Homework Statement i have solve a engineering problem until this part I'm stuck C cos 30 - 1.375 cosθ = 0 ----(1) C sin 30 + 1.375 sin θ = 15 ---(2) . i have 2 unknown C and θ, however the change to cos to sin or via versa make me lost because of my poor mathematic Homework Equations The...