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If the sun turned black would night still be after sunset? Will Richard Branson build a big base on the moon? Solve the diffrential equation (y^3 x^2 -my)dx+(x^3y^2+nx)dy=0 i try to use exact and integration factor but i got stuck at some point? Given cos(α)=−1/2 and α is in quadrant II, find the exact values of Sin α=
Cos α=
Tan α=
Csc α=
sec α=? When given the equations x-y=-1, 2y-x=27, x+y =11 how would you use row echelon form to get to the answer (5,6)?