Find all values of unknowns which satisfy the following equations: 1. (x, y, z)-3(-1,2, i) - (0,0,0) 2. 7(2, X, X²²)-5 (2₁-X, X ²) = (1,12 x, x²)+3 3. (sinx, sin2x,ine) = (sinT, 2sinx,secx) cosx 4. for the given vectors find the value of normalize W+V ū= (1, 1, 3) V = (3, 1, 1)

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