观察下列式子找出规律3²+4²=5²8²+6²=10²15²+8²=17²24²+10²=26²(1)找出规律写出数学表达式,并根据此规律写出接下来的第五个式子(2)对上述规律加以
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![观察下列式子找出规律3²+4²=5²8²+6²=10²15²+8²=17²24²+10²=26²(1)找出规律写出数学表达式,并根据此规律写出接下来的第五个式子(2)对上述规律加以](/uploads/image/z/1081243-19-3.jpg?t=%E8%A7%82%E5%AF%9F%E4%B8%8B%E5%88%97%E5%BC%8F%E5%AD%90%E6%89%BE%E5%87%BA%E8%A7%84%E5%BE%8B3%26%23178%3B%2B4%26%23178%3B%3D5%26%23178%3B8%26%23178%3B%2B6%26%23178%3B%3D10%26%23178%3B15%26%23178%3B%2B8%26%23178%3B%3D17%26%23178%3B24%26%23178%3B%2B10%26%23178%3B%3D26%26%23178%3B%EF%BC%881%EF%BC%89%E6%89%BE%E5%87%BA%E8%A7%84%E5%BE%8B%E5%86%99%E5%87%BA%E6%95%B0%E5%AD%A6%E8%A1%A8%E8%BE%BE%E5%BC%8F%2C%E5%B9%B6%E6%A0%B9%E6%8D%AE%E6%AD%A4%E8%A7%84%E5%BE%8B%E5%86%99%E5%87%BA%E6%8E%A5%E4%B8%8B%E6%9D%A5%E7%9A%84%E7%AC%AC%E4%BA%94%E4%B8%AA%E5%BC%8F%E5%AD%90%EF%BC%882%EF%BC%89%E5%AF%B9%E4%B8%8A%E8%BF%B0%E8%A7%84%E5%BE%8B%E5%8A%A0%E4%BB%A5)
观察下列式子找出规律3²+4²=5²8²+6²=10²15²+8²=17²24²+10²=26²(1)找出规律写出数学表达式,并根据此规律写出接下来的第五个式子(2)对上述规律加以
观察下列式子找出规律
3²+4²=5²
8²+6²=10²
15²+8²=17²
24²+10²=26²
(1)找出规律写出数学表达式,并根据此规律写出接下来的第五个式子
(2)对上述规律加以验证
(3)在RT△ABC中,角C=90度,AC=39999,BC=400,你能快速算出AB吗?
观察下列式子找出规律3²+4²=5²8²+6²=10²15²+8²=17²24²+10²=26²(1)找出规律写出数学表达式,并根据此规律写出接下来的第五个式子(2)对上述规律加以
规律
1/[√(n+1)+√n]=√(n+1)-√n
1/√2+1+1/√3+√2+1/√4+√3+……+1/√2013+√2012
=√2-1+√3-√2+√4-√3+……+√2013-√2012
=√2013-1