Posted by **Leslie** on Wednesday, May 7, 2008 at 5:22pm.

Let f(x)=9sinx/2sinx+4cosx.

Then 'f(x)= ((2sinx+4cosx)(9cosx)-(9sinx)(2cosx-4sinx))/(2sinx+4cosx)^2.

The equation of the tangent line to y=f(x) at a=2 can be written in the form y=mx+b where

m= 9and

b= ______.?????

## Answer this Question

## Related Questions

- Calculus - Let f(x)=9sinx/2sinx+4cosx Then f'(x)=________ . The equation of the ...
- Math - trig - Determine the general solution of 8 cos^2x - 4cosx - 1 =0 (8cos^2x...
- Calculus - Find the equation of the tangent line to the curve y=2sinx at the ...
- Math, please help - Which of the following are trigonometric identities? (Can be...
- Calculus (Normal Line, please check my work) - The slope of the line normal to ...
- Calculus - Determine the concavity and find the points of inflection. y=2cosx + ...
- pre-calculus - (tan^2x-9)(2cosx+1)=0 Find one period 4cos^2x-4cosx+1=0 find all ...
- maths - by equating the coefficients of sin x and cos x , or otherwise, find ...
- Calculus - f(x)=4sinx/1+cosx find f'(x) this is what i got and i dunno what i ...
- math - a rectangle is to be inscribed under the arch of the curve y = 2cosx from...

More Related Questions