What is the value of 6371*cos(39.5857100000000…)*cos(-104.9452200000000…) ?

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6371cos(39.5857100000000…)cos(-104.9452200000000…)

6371 \cdot cos (39.5857100000000 \dots^{\circ}) \cdot cos (- 104.9452200000000 \dots^{\circ})

- 1266.25425 \dots

Solution steps

6371 cos (39.58571 \dots^{\circ}) cos (- 104.94522 \dots^{\circ})

Refine to a decimal form

= - 1266.25425 \dots

sec^{2} (4 5^{\circ}) - tan (4 5^{\circ})

8 sin (6 5^{\circ})

2 sin (1 6^{\circ}) cos (1 6^{\circ})

sin (45.5 7^{\circ})

2 - \frac{e ^{2} - tan ( 2 )}{e ^{2} - ( sec ( 2 ) ) ^{2}}

What is the value of 6371*cos(39.5857100000000…)*cos(-104.9452200000000…) ?
The value of 6371*cos(39.5857100000000…)*cos(-104.9452200000000…) is -1266.25425…