What is expand (-5i+4j)(5cm,240) ?

The solution to expand (-5i+4j)(5cm,240) is -5i(5*240,mc)+4j(5*240,mc)

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expand (-5i+4j)(5cm,240)

expand

(- 5 i + 4 j) (5 c m, 24 0^{\circ})

- 5 i (5 \cdot 24 0^{\circ}, m c) + 4 j (5 \cdot 24 0^{\circ}, m c)

Solution steps

(- 5 i + 4 j) (5 c m, 24 0^{\circ})

= (- 5 i + 4 j) (5 \cdot 24 0^{\circ}, m c)

Apply the distributive law:

a (b + c) = ab + a c

a = (5 c m, 24 0^{\circ}), b = - 5 i, c = 4 j

= (5 c m, 24 0^{\circ}) (- 5 i) + (5 c m, 24 0^{\circ}) \cdot 4 j

Apply minus-plus rules

+ (- a) = - a

= - 5 i (5 \cdot 24 0^{\circ}, m c) + 4 j (5 \cdot 24 0^{\circ}, m c)

(x + 1) (- \frac{1}{2} e^{- 2 x})

(2 x + 3 y = 10) (- 2)

cos ((3 x + 1) \frac{d}{d x} (3 x + 1))

\frac{4 kj d - 2 kj l}{d ( d + l )}

j (z - e^{- T j - T}) (z - e^{T j - T})

What is expand (-5i+4j)(5cm,240) ?
The solution to expand (-5i+4j)(5cm,240) is -5i(5*240,mc)+4j(5*240,mc)