senilai dengan... a. tan x b. cot x c. tan^2 x d. cot^2 x d. cos^2 x.... Question from @winegh

October 2018 2 943 Report

$\frac{1+cos2x}{1-cos 2x}$ senilai dengan...
a. tan x
b. cot x
c. tan^2 x
d. cot^2 x
d. cos^2 x

izharulhaq78 $\frac{1+cos2x}{1-cos2x} \\\frac{1+(cos^2x-sin^2x)}{1-(cos^2x-sin^2x)} \\ \frac{(cos^2x+sin^2x)+cos^2x-sin^2x}{(cos^2x+sin^2x)-cos^2x+sin^2x} \\ \frac{cos^2x+sin^2x+cos^2x-sin^2x}{cos^2x+sin^2x-cos^2x+sin^2x} \\ \frac{cos^2x+cos^2x}{sin^2x+sin^2x} \\ \frac{2cos^2x}{2sin^2x} \\ \frac{cos^2x}{sin^2x} \\ (\frac{cosx}{sinx})^2 \\ (cotx)^2 \\ cot^2x$

14 votes Thanks 38

hendrisyafa Jika cos 2x = 1-2 sin²x Maka 1+cos 2x / 1-cos 2x = ( 1+1-2 sin²x )/ (1-1+ 2 sin²x ) = 2-2 sin²x / 2 sin²x = 2 (1-sin²x) / 2 sin²x = 1-sin²x / sin²x = cos²x / sin²x = cot²x = 2-2 sin²x / =

4 votes Thanks 12

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Tolong dibantu no3, beserta caranya ya :)

Diketahui = -8 , tentukanlah: a) b)

Jika diketahui dan tentukan: a. {f(x)-g(x)}b. {f(x)}^2

sin 52,5° . sin 7,5° =.... a. b. c. d. e.

Jika tan 5° = p, maka tan 40° =.... a. b. c. d. e.

Cos 44,5 . cos 30,5 - sin 44,5 . sin 30 =.. a. b. c. d. e.

Jika sin 2x = 1 - 4p^2 , maka cos^2 x =.... a. b. c. d. e. 0

Dik: cos 2A = 8/10. tentukan tan A, sudut A sudut tumpul.

Sederhanakanlah: a. b.

Tentukan nilai: 2sin 52,5° x sin 7,5°

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