（本题6分）观察下列各式及其验证过程：验证：小题1:(1)按照上面结论猜想的结果，并写出验证过程；小题2:(2)根据对上述各式规律，写出用n(n为正整数，且n≥2)表示的等式并给出证明-九年级数学

更多内容推荐

• He _____ as a national hero for winning the first gold medal for his country in the Olympics.A．regar
• Your desk is covered with too many unnecessary things, including used papers and books. You’d better
• I will_____to go and study abroad next year.A．applyB．answerC．appreciateD．appoint-高二英语
• The twins look alike,but they _____in character.A．differentB．differC．distinguishD．transform-高二英语
• ----Where_____the recorder ?I can not see it anywhere.-----I_____it right here.But now it is gone!A．
• ①；-九年级数学
• 若成立的条件是．-九年级数学
• Once harm ______ to the environment, it takes years to have the system recovered.A．doesB．is doneC．wi
• 的相反数是．-八年级数学
• You have no chance of getting the position. I’m afraid you _____ your time if you apply for it.A．was
• —What is the price of petrol these days? —Oh，it ________ sharply since last month.A．is raisedB．has r
• The woman will think of her own child ______ she ______ these little children.A．every time；seesB．eac
• 计算：（1）23-1+12-913；（2）(6x2-2x12x)÷32x．-数学
• The volleyball match _______ if it rains tomorrow.A．will put off B．will be put offC．is put offD．puts
• By the time you get to Beijing tomorrow, I ______ for Shanghai.A．am leavingB．should have leftC．will
• The truck ran down the hill, and the driver _____, according to the local newspaper, to have been ki
• -九年级数学
• 可以与合并的是（）A．B．C．D．-九年级数学
• 已知是的整数部分，是的小数部分，计算的值-八年级数学
• You have failed to do what you ________ to and I’m afraid the teacher will blame you.A．will expectB．
• I feel so excited! At this time tomorrow, I ________ by camel with local guides in Northern Africa.
• Enough______ to stop the forest______ since the 1980’s.A．has been done;be cut downB．has done;cutting
• — No one answered when I phoned this morning. Where were you?— I for teeth in the dental clinic.A．wa
• The three sisters decided to hold a family party to _______ their parents’ silver wedding.A．celebrat
• 函数的自变量x的取值范围是▲．-九年级数学
• 估计的值（▲）A．在2到3之间B．在3到4之间C．在4到5之间D．在5到6之间-九年级数学
• Hopefully, another ten volunteers ______ to work in the new exhibition by the end of this week.A．wil
• 计算：小题1:；小题2:；-八年级数学
• (8分)观察下列各式及验证过程：.验证:.验证:.验证:（1）按照上述三个等式及其验证过程的基本思路，猜想的变形结果并进行验证；（2）针对上述各式反映的规律，写出用n（n的自然数-八年级数学
• 若的平方根是3，则m=．.-八年级数学
• – Have you ever been to the city before?– No. This is the first time I _____ here.A．wasB．have beenC．
• Some amazing people _______ our world for the better in the past 100 years.A．changeB．are changingC．h
• I was trying to pick up my hat that __________ off in the wind, but failed at last.A. had been blown
• ②-九年级数学
• — Do you still remember how we first met?— Yes, you ________ to my office and ran into me on the way
• 16的平方根为________-八年级数学
• 当x=7时，x+5+x-4-4x-1=______．-数学
• At present a special village _______ for the athletes from different countries to live in.A．is built
• 若，，则的值为．-八年级数学
• 计算(每小题6分,共18分)(1)(2)(3)-八年级数学
• ①；-九年级数学
• —Have you read today’s report about your performance? — I don’t care what ＿＿ about me.A．will be writ
• This kind of glasses manufactured by experienced craftsmen ______ comfortably.A．is wornB．wearsC．wear
• After school we went to the reading-room to do some reading, only to be told that it .A．is decorated
• （2011•温州）（1）计算：；（2）化简：a（3+a）﹣3（a+2）．-八年级数学
• 已知：，，求的值.-九年级数学
• 化简：.-九年级数学
• 实数范围内有意义，则x的取值范围是（）A．x＞1B．x≥lC．x＜1D．x≤1-九年级数学
• 化简：=；=．-八年级数学
• My house _____ when you visited Beijing last time, so I didn’t invite you to my home. A．was being de