What is the value of (sin(17)cos(13)+sin(13)cos(17))/(cos(26)cos(19)-sin(26)sin(19)) ?

The value of (sin(17)cos(13)+sin(13)cos(17))/(cos(26)cos(19)-sin(26)sin(19)) is 0.70710…

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(sin(17)cos(13)+sin(13)cos(17))/(cos(26)cos(19)-sin(26)sin(19))

\frac{sin ( 1 7 ^{\circ} ) cos ( 1 3 ^{\circ} ) + sin ( 1 3 ^{\circ} ) cos ( 1 7 ^{\circ} )}{cos ( 2 6 ^{\circ} ) cos ( 1 9 ^{\circ} ) - sin ( 2 6 ^{\circ} ) sin ( 1 9 ^{\circ} )}

0.70710 \dots

Solution steps

\frac{sin ( 1 7 ^{\circ} ) cos ( 1 3 ^{\circ} ) + sin ( 1 3 ^{\circ} ) cos ( 1 7 ^{\circ} )}{cos ( 2 6 ^{\circ} ) cos ( 1 9 ^{\circ} ) - sin ( 2 6 ^{\circ} ) sin ( 1 9 ^{\circ} )}

Refine to a decimal form

= 0.70710 \dots

What is the value of (sin(17)cos(13)+sin(13)cos(17))/(cos(26)cos(19)-sin(26)sin(19)) ?
The value of (sin(17)cos(13)+sin(13)cos(17))/(cos(26)cos(19)-sin(26)sin(19)) is 0.70710…