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Solve for d Spherical triangle whose parts

are C = 89, a = 70°, b = 60°

please show me ste

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To find c, use the law of cosines.

cosc = cosa cosb + sina sinb cosC
cosc = cos70° cos60° + sin70° sin60° cos89°
c = 79°

Now you can use the law of sines to find A,B.

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