The function f1 is defined by: f1(x) = 4Cos(x/2) , x E [0;4[ The function f2 is defined by: f2(x) = (1/(4-x)) , x E [0;4[     Let T1 and T2 be the tangents to the curves of equations, at the abscissa points (a) respectively where a E [0;4[. Knowing that the tangents T1 and T2 are perpendicular, show the following equation: (w - a)2 = 2sin (a/2), Where w is a positive integer to be determined?   2. Taking a0= 2.6, solve the equation. Give the answer 10-4.

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ISBN:9780470458365
Author:Erwin Kreyszig
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The function f1 is defined by: f1(x) = 4Cos(x/2) , x E [0;4[

The function f2 is defined by: f2(x) = (1/(4-x)) , x E [0;4[    

Let T1 and T2 be the tangents to the curves of equations, at the abscissa points (a) respectively where a E [0;4[.

  1. Knowing that the tangents T1 and T2 are perpendicular, show the following equation:

(w - a)= 2sin (a/2),

Where w is a positive integer to be determined?

 

2. Taking a0= 2.6, solve the equation. Give the answer 10-4.

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