請問(2)怎麼寫？

設0°<a<90°,180°<<270°,且tang= (1) tan (a+B)= (2) α+B= , = 3 2 9

這題求解

※總分100分 cosa+cosB+cosy=0 1. 若 , 求cos(a-B)= 。 (8分) sina+sinB+siny=0 = codcoußtsrasmb

“陽明山山坡地的土地利用類型之研究” 被歸類於空間傳統，但是個人覺得跟區域傳統的意義很相似，皆是規劃一片區域的未來，要如何才能更分的清楚這兩項，想請問一下✊ 還有以下這幾張皆是分不太出來的

晚上11:36 回 ✓ KB/s 0.98 C Vo LTE ō 【高三複習】 ... quizlet.com 4G+ 9 4 ∞ ☐ : 測試 14 / 17 複習單詞卡 我 今 x 有特殊而悠美的地形 景觀,美景天成,適 合設為國家公園 沒關係,你還在學習! √ 空間傳統 生態傳統 X 區域傳統 不知道嗎?

這題我是用2倍角公式算但是為甚麼不行 幫偶看一下🥺

11. 已知270°<<360°且cose= 5 ,求cos 10 的值。 單元3 三角的和 (解) 5 sin ☺ # tan C = 3 9 16 示 25 25 25 4 Q 7 2 25 100 16 1-2-625 " 1 25

請問這題怎麼算

10. 如右圖,在△ABC中,∠B=90°且∠CAB之平分線交BC於D。 已知CD=3BD,求 (1)cos(∠CAB)的值。 (2)cos(∠DAB)的值。 A D B

請問這題要怎麼算 tana減tanB不等於tan(a減B)嗎～我直接帶入但是好像不行

7. 設a-B=225°,求(1+tana)(1-tanB)的值。 tan atan B 1 + fan&tan B tan α-tan tan 225° = tan 45° = = | - tanẞ + tana - tana tanp = 單元3 三角的和差角公式

英文大神救救我🥹

三、文法選擇(10%) BA -10 (PSI) 16. According to the study, an increasing number of teenagers are spending more time or different social media sites to see what their friends are doing. qrisme oil taut (A) to surf.mator br(B) surfing tiqqoda pag (C) surf ass gaibuloni (D) surfs di wsiv Sw Yo A 17. Sandy placed a stocking over the fireplace, firmly a song that Santa Claus would bring her a erine gift. di Jorb laid mod 296m diles Isuniv. & god bhow eligib si 992 slqooq 2190lq (A) believing so odt to (B) believed iziv 01 (C) was believed aid (D) to believe or brow B18. It is advisable that everyone dool no their hands before having a meal. A D" eg o gaived tuorbiw (A) washed sago sri ni (B) washo nisu br (C) washes) ygolond (D) must wash 20 2019. Hitz Angus learned his beloved grandfather passed away, he couldn't help but burst out me to crying. arbor auto s 992 of 1st place and griqqode og ne slqo Joiberg (A) As soon as vils (B) As much as o algo (C) As far as stw nsq (D) As long as swoll Conv20. Rita was extremely upset since the food at that fancy restaurant didn't taste or she had imagined. 292od isЯlif xool Hiw simit went farw 998 box,qu-169,2diolo agu srl (A) as deliciously as (B) so delicious that on (C) as delicious as Jar (D) so deliciously that JW bhow [OT ID as offer 26 od lliw vliler (suni soni 1996 th

想問這題怎麼寫，謝謝

U 11. 在27℃下,24.6L的NO與NO.混合氣體平衡時,壓力為1.0 atm,若x為N,O購 NO,的莫耳數比值,則下列敘述何者正確? (假設27℃時,可逆反應NO.(g)=2NO2(g)的平衡常數K=1.6) (A) x ≥ 1.0 (B) 1.0 > x ≥ 0.70 (C) 0.70>x≥0.40 (D) x < 0.4(E)0.60 > x≥ 0.50。

答案在上面

2√3+3√7 3√3+2√7 4√3+7√7 3-2.設 a= b= , C= d= 7√3+4√7 , 5 5 11 11 (A)a>b>c>d (B)d>a>c>b (C)c>b>a>d (D)d>c>b>a (E)c>a>b>d E

答案在第二頁，求救~

【演練3】 3-1.設實數a<b。試比較 a+2b a+2b 2a+3b 3 , 5 1 20+36 3a+56 5+3 46=130 a 3a+5b 8 44 三數的大小關係。