180°－90°24′30〃88°14′48〃怎么算?要过程,快.是解答题

Question

180°－90°24′30〃 88°14′48〃怎么算?要过程,快.
是解答题

Answer 1

180°－90°24′30〃
=180°-90°-24′-30〃
=90°-24′-30〃
=89°+1°-24′-30〃
=89°+60′-24′-30〃
=89°+36′-30〃
=89°+35′+1′-30〃
=89°35′+60〃-30〃
=89°35′+30〃
=89°35′30〃
记住借1当60就行
88°14′48〃÷4
=（88°+14′+48〃）÷4
=88°÷4+14′÷4+48〃÷4
=22°+（12′+2′）÷4+12〃
=22°+12′÷4+2′÷4+12〃
=22°+3′+60〃×2÷4+12〃
=22°3′+30〃+12〃
=22°3′+42〃
=22°3′42〃