Find the supplement of the following angles: 59°35'59"
Let the required angle be y.
∴y+59°35'59"=180°y=180°-59°35'59''y=179°59'60''-59°35'59''(As180°=179°59'60'')y=120°24'1"
Hence, the supplement of 59°35'59" is 120°24'1".
Prove that 59×59×59−9×9×959×59+59×9+9×9=50.