What is the value of 2(sin(4)+cos(4)+4(cos(4)-sin(4))) ?

The value of 2(sin(4)+cos(4)+4(cos(4)-sin(4))) is -1.99562…

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2(sin(4)+cos(4)+4(cos(4)-sin(4)))

2 (sin (4) + cos (4) + 4 (cos (4) - sin (4)))

- 1.99562 \dots

Solution steps

2 (sin (4) + cos (4) + 4 (cos (4) - sin (4)))

Refine to a decimal form

= - 1.99562 \dots

1 - \frac{sin ( 4 5 ^{\circ} )}{cos ( 4 5 ^{\circ} )}

tan^{2} (6 0^{\circ}) - sec^{2} (6 0^{\circ}) + cot (4 5^{\circ})

cos (arctan (2))

sin (\frac{2 π}{3}) - cos (\frac{π}{12}) + tan (\frac{5 π}{4})

sin (5 0^{\circ}) sin (1 0^{\circ}) - 2 cos (4 0^{\circ}) - 2 cos (2 0^{\circ})

What is the value of 2(sin(4)+cos(4)+4(cos(4)-sin(4))) ?
The value of 2(sin(4)+cos(4)+4(cos(4)-sin(4))) is -1.99562…