
With this info you can exchange 1 and there you got your answer.
So:
![\frac{\cos^{2}x-1}{\cos x}=-\tan x\sin x \Rightarrow \frac{\cos^{2}x-\left(\cos^{2}x + \sin^2 x\right)}{\cos x}=-\tan x\sin x \Rightarrow[tex]\frac{-\sin^2x}{\cos x}=-\tan x\sin x \Rightarrow \frac{-\sin x \sin x}{\cos x}=-\tan x\sin x \Rightarrow](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ccos%5E%7B2%7Dx-1%7D%7B%5Ccos%20x%7D%3D-%5Ctan%20x%5Csin%20x%20%5CRightarrow%20%5Cfrac%7B%5Ccos%5E%7B2%7Dx-%5Cleft%28%5Ccos%5E%7B2%7Dx%20%2B%20%5Csin%5E2%20x%5Cright%29%7D%7B%5Ccos%20x%7D%3D-%5Ctan%20x%5Csin%20x%20%5CRightarrow%5Btex%5D%5Cfrac%7B-%5Csin%5E2x%7D%7B%5Ccos%20x%7D%3D-%5Ctan%20x%5Csin%20x%20%5CRightarrow%20%5Cfrac%7B-%5Csin%20x%20%5Csin%20x%7D%7B%5Ccos%20x%7D%3D-%5Ctan%20x%5Csin%20x%20%5CRightarrow)
[/tex]
Answer:
pictured below!
sorry for my messy handwriting
Answer:
x=1/3
read below to find out how I solved!
Step-by-step explanation:
break it down.
First do 1.2÷0.375−0.2 = 1.2.
it is now 1.2/(6 4/25 ÷15 2/5 +0.8) = (0.016÷0.12+0.7)/x
now do 6 4/25 ÷15 2/5 +0.8 = 3
it is now 1.2/3 = (0.016÷0.12+0.7)/x
now do 0.016÷0.12+0.7 and that is 5/6
now you have 1.2÷3 = 5/6 ÷ x
solve for x and you should get x = 1/3!!
H(10) = 13-4(10)
= 13 - 40
= -27!