Q7/Find a point where the tangent line to the graph of f(x)=x-x2 is parallel to the line x+y-2=0. Then write the equation for this tangent line? Sol. (1,0) , y=1-x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 91E
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Q7/ Find
a point where the tangent line to the graph of f(x)=x-x2 is
parallel to the line x+y-2=0. Then write the equation for this tangent
line?
Sol. (1,0) , y=1-x
Q 8/ Find all points on the graph of f(x)= (x-3) (x-2) at which the
<->
-1
tangent line is horizontal.
sol. (을4)
Q /Find all points on the graph of f(x)=x+x1 at which the tangent line is
horizontal.
Sol. (1,2)
Q 10/Find all points on the graph of f(x)=x3-6x²+9x+4 at which the
tangent line is horizontal.
Sol. (1,8), (3,4)
Transcribed Image Text:Q7/ Find a point where the tangent line to the graph of f(x)=x-x2 is parallel to the line x+y-2=0. Then write the equation for this tangent line? Sol. (1,0) , y=1-x Q 8/ Find all points on the graph of f(x)= (x-3) (x-2) at which the <-> -1 tangent line is horizontal. sol. (을4) Q /Find all points on the graph of f(x)=x+x1 at which the tangent line is horizontal. Sol. (1,2) Q 10/Find all points on the graph of f(x)=x3-6x²+9x+4 at which the tangent line is horizontal. Sol. (1,8), (3,4)
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