What is the value of 9.8(sin(55)-0.4*cos(55)) ?

The value of 9.8(sin(55)-0.4*cos(55)) is 5.77927…

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9.8(sin(55)-0.4*cos(55))

9.8 (sin (5 5^{\circ}) - 0.4 \cdot cos (5 5^{\circ}))

5.77927 \dots

Solution steps

9.8 (sin (5 5^{\circ}) - 0.4 cos (5 5^{\circ}))

Refine to a decimal form

= 5.77927 \dots

\frac{2}{π \cdot 0.5} tan (\frac{π \cdot 0.5}{2})

3 [cos (\frac{4 π}{9}) + i sin (\frac{4 π}{9})]

cos (\frac{61 π}{4})

e^{- (1)^{2}} - cos (1)

cot (0.785)

What is the value of 9.8(sin(55)-0.4*cos(55)) ?
The value of 9.8(sin(55)-0.4*cos(55)) is 5.77927…