根号64等于多少，求详解求过程
=根号下8*8=8
绛旓細鏍瑰彿64=64^0.5璁64^0.5=x涓よ竟鍚屾椂鍙栧鏁發og64(64^0.5)=log64(x)0.5=log64x鏀惧湪璁＄畻鍣ㄩ噷瑙ｅ嚭鏉ュ氨濂戒簡銆
绛旓細=鏍瑰彿涓8*8 =8
绛旓細4.鏍瑰彿6 5.灏嗙洿绾縳=2+2tcos伪,y=-4+tcos尾 浠ｅ叆鏇茬嚎y^2=4x 寰(cos尾)^2t^2-8(cos伪+cos尾)t+8=0 鍥犱负鏄浉鍒囷紝涓婂紡浠呮湁涓涓牴 鍒欌柍=64(cos伪+cos尾)^2-32(cos尾)^2=0 鍗2(cos伪)^2+4cos伪cos尾+(cos尾)^2=0 2(cos伪/cos尾)^2+4(cos伪/cos尾)+1=0 cos伪/co...
绛旓細鑻鈮16锛屽垯g(x)鍦╗2,4]涓哄鍑芥暟锛屾渶澶у间负g(4)=12+k/4<12+4=16<25 锛屾弧瓒虫潯浠 鑻>64,锛鍒檊(x)鍦╗2,4]涓哄噺鍑芥暟锛屾渶澶у间负g(2)=4+k/2>4+32=36>25,涓嶆弧瓒虫潯浠 鑻16<k<64锛鍒欏彲璇佹槑褰揼(x)鍦╗2,鏍瑰彿(k/4)]涓哄噺鍑芥暟锛屽湪[鏍瑰彿(k/4)锛4]涓哄鍑芥暟 鎵浠ユ渶澶у...
绛旓細1銆-1 2銆1 3銆5+2鏍瑰彿6 4銆10 5銆亁>=13鎴杧<=3 6銆侊紙x-1锛変箻涓婏紙x+3锛夎瘽璇翠綘澶氬ぇ鍟
绛旓細鍋歅G鍨傜洿浜嶣C,浜C浜嶨 BG=AP=2 FP=DP=10 PG=8 FG=鏍瑰彿FP^2-PG^2=6 鎵浠F=4 璁綟E=DE=X 鍒機E=B-X 鎵浠F^+CE^2=EF^2 鍗16+锛8-x锛塣2=x^2 寰梮=5 鎵浠C=3
绛旓細(3)灏唗=8浠ｅ叆鍏崇郴寮忓緱S=1/2*64-2*8=16 瑙ｆ瀽寮忔眰娉 鈶犱竴鑸紡:鏍规嵁y=ax^2;+bx+c灏(a,b)(c,d)(m,n)鍚屾椂甯﹀叆y=ax2+bx+c 鍙緱瑙ｆ瀽寮 鈶￠《鐐瑰紡:y=a(x-h)+k , h涓洪《鐐规í鍧愭爣 k涓洪《鐐圭殑绾靛潗鏍 灏嗛《鐐瑰拰涓涓换鎰忓潗鏍囧甫鍏ラ《鐐瑰紡鍚庡寲绠 鍙緱瑙ｆ瀽寮 鈶氦鐐瑰紡:y=a(x-x1)(x-x2) -x1 ...
绛旓細a=5,b=4,鎵浠=3 浠F1=m锛孭F2=n F1F2=2c=6 m+n=2a=10 鐢变綑寮﹀畾鐞 cos鈭燜1PF2=1/2=(m^2+n^2-F1F2^2)/2mn 鎵浠^2+n^2-36=mn m+n=10 鎵浠^2+n^2+2mn=100 m^2+n^2=100-2mn 浠ｅ叆m^2+n^2-36=mn 64-2mn=mn mn=64/3 鎵浠ラ潰绉=mnsin60搴/2=16鈭3/3...
绛旓細鎵浠ュ師鏂圭▼=x²/8+y²/6=1 锛2锛夎涓猴細x²/a²+y²/b²=1锛屾妸涓ょ偣甯﹀叆锛64/b²=1锛36/a²+16/b²=1锛岃В寰梑²=64锛a²=48锛屾墍浠ュ師鏂圭▼=x²/48+y²/64=1 涓嶆噦鍐嶉棶鎴戞垜浼氳鐨勮缁嗙偣锛岀浣犲涔犺繘姝ワ紒
绛旓細1,n1=1, n2=1,n3=2,n4=n2*2+n1...n12=n10*2+n9=144 2,2222233鍏憋紙2*2*2-1锛+4=11绉嶉夋嫨,2223333鍏13*2+1+1=28绉嶉夋嫨锛孌37 4-1锛5锛*2=240 4-2,10*8!4-3锛5!*2*2*2*2*2
