What is the value of 20.9+((sin(pi/(21)+e/(21))*0.19*sqrt(21))-0.21+1) ?

The value of 20.9+((sin(pi/(21)+e/(21))*0.19*sqrt(21))-0.21+1) is 21.92981…

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20.9+((sin(pi/(21)+e/(21))0.19sqrt(21))-0.21+1)

20.9 + ((sin (\frac{π}{21} + \frac{e}{21}) \cdot 0.19 \cdot 21) - 0.21 + 1)

21.92981 \dots

Solution steps

20.9 + ((sin (\frac{π}{21} + \frac{e}{21}) \cdot 0.19 21) - 0.21 + 1)

Refine to a decimal form

= 21.92981 \dots

- 4 sin (- \frac{3 π}{4})

arccot (- \frac{9}{7})

sin (1 5^{\circ}) \cdot cos (1 5^{\circ})

45 sin (3 0^{\circ})

arcsin (\frac{13}{20})

What is the value of 20.9+((sin(pi/(21)+e/(21))*0.19*sqrt(21))-0.21+1) ?
The value of 20.9+((sin(pi/(21)+e/(21))*0.19*sqrt(21))-0.21+1) is 21.92981…