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数学思想方法是数学的精髓,它会对同学们的思维与数学素养产生深刻而持久的影响,使同学们终生受益.同学们在学习时有意识地渗透数学思想方法有利于深刻地理解数学知识体系,有利于提高同学们的数学修养.在正弦、余弦定理的运用中,蕴涵着丰富的数学思想,下面举例说明.1.正难则反.例1三角形中,三边之长为10,14,16,求最大
Mathematical thinking method is the essence of mathematics, it will have a profound and lasting impact on the students’ thinking and mathematical accomplishment, so that students benefit for the rest of their lives. Students in the study consciously penetrate mathematical thinking is conducive to a deep understanding of mathematical knowledge system , Is conducive to improving students’ mathematical accomplishment.In the use of sine, cosine theorem, contains a wealth of mathematical ideas, the following examples.It is hard to counter.Examples 1 triangle, the length of the three sides of 10,14 16, find the greatest