T=tanθとするとcos2θ=(1-T²)/(1+T²), sin2θ=2T/(1+T²)で表せるので 点(x,y)=((1-T²)/(1+T²),2T/(1+T²))で単位円 中心1ずらして(2/(1+T²),2T/(1+T²)) 原点中心に大きさ半分にして(1/(1+... 続きを読む

媒介変数表示ってなんですか？ 簡単にでいいので教えてください🙇‍♂️ よろしくお願いします！

一番目が問題で二問目が答えなんでがわかる方教えください

EVALUATING FUNCTIONS The symbol f(x) represents the real number in the range of the function f corresponding to the domain value x. Symbolically, f:x→f(x). The ordered pair (x, S(x)) belongs to the function f. Ifxisa real number that is not in the domain of f, then fis not defined at x and f(x) does not exist. Examples: 15 a) Find f(6), S(a), and f(6+a) for f(x) 三 3° X - b) Find g(7), g(h), and g(7+h) for g(x) = 16+ 3x x. 2 Find k(9), 4k(a), and k(4a) for k(x) Vx c) 2 For the above functions, determine the resulting domain. Solutions: a) b) c)

一番目が問題で二問目が答えなんでがわかる方教えください

EVALUATING FUNCTIONS The symbol f(x) represents the real number in the range of the function f corresponding to the domain value x. Symbolically, f:x→f(x). The ordered pair (x, S(x)) belongs to the function f. Ifxisa real number that is not in the domain of f, then fis not defined at x and f(x) does not exist. Examples: 15 a) Find f(6), S(a), and f(6+a) for f(x) 三 3° X - b) Find g(7), g(h), and g(7+h) for g(x) = 16+ 3x x. 2 Find k(9), 4k(a), and k(4a) for k(x) Vx c) 2 For the above functions, determine the resulting domain. Solutions: a) b) c)

数学苦手な上英語なのでよくわかりませんがわかる方いらっしゃたら教えください

EVALUATING FUNCTIONS The symbol f(x) represents the real number in the range of the function fcorresponding to the domain value x. Symbolically, f:x → S(x). The ordered pair (x, f(x)) belongs to the function f. If xis areal number that is not in the domain of f, then fis not defined at x and f(x) does not exist. Examples: 15 a) Find f(6), f(a), and f(6+a) for f(x) x -3 b) Find g(7), g(h), and g(7+h) for g(x) = 16+ 3x - x。 2 c) Find k(9), 4k(a), and k(4a) for k(x) = 2 For the above functions, determine the resulting domain. Solutions: a) b) c)

(I)が関数で(ii)が関数じゃないらしいのですが何故か教え欲しいです

Determine whether each set specifies a function. If it does, then state the domain and range. 2) i) S = {(I1,4), (2,3), (3,2), (4,3), (5,4)} T= {(1,4), (2,3), (3,2), (2,4), (1,5)} Solutions: i) Prepared by DZ Page 3

100m(=100の数の和)と100×log10(50)の大小，つまり100!と50^100の大小を比べればいいことはわかるのですが，後者の方が大きそうだなーという認識に留まっています． 99!=(50-49)(50+49)×(50-48)(50+48)×(50-47)(5... 続きを読む

7 (おまけ) 100 個の数 log1o 1, log102, log103,..-, log1099, log10100 の平均 m と log1050 の大小を比較せよ. 。

対数関数の問題です． なんとなく勘でx=y=4(=√16)のとき最小値16と当てましたが，よくわかっていません． y=x/16を利用して， 　log_2(y)=log_2(x)-4 と変形したのち，関数Iを展開してlog_2(x)=Xとして 　f(X)=2X^3-12X^2... 続きを読む

1枚目が私の間違えで、2枚目が答えです。 なぜ私の答えがダメなのですか？何故か答えに納得いきません…。

Sara kicked a football. The height of the ball (in meters above the ground) を seconds after Sara kicked it is modeled by ヵ(0 ニー5だ二204 Sara wants to know the height of the ball above the ground at its highest point. 1) Rewrite the function in a different form (factored or vertex) where the answerappears as a number in the equation. の=| 一57(7ー4) 2) At ts highest point, how farabove the ground was the ball 4 meters

この問題の答えを教えてください🙏

POああ 2.Determine the equation of each function in the sketch - justify to earn part marks ifyou are incorrect. ⑧⑤ テ ⑥ 泊