The third one duhhh, Ik this stuff
9514 1404 393
Answer:
y' = -sin(x)
Step-by-step explanation:
Your table of derivatives of trig functions tells you the derivative of the cosine is the opposite of the sine.
dy/dx = -sin(x)
They are perpendicular because when you change 2x+8y=16 to slope intercept form it becomes y= -1/4x+2 and the slope (-1/4) is the negative reciprocal of 4, which is the slope for your other equation.
Please comment if you have any questions :)
Answer:
hope this helps
Step-by-step explanation:
1/4×3=3/4
1/3×4=1 1/3
1/2×3=1 1/2
now add all the fractions together