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jeka94
3 years ago
14

Write the cubic function.

Mathematics
1 answer:
creativ13 [48]3 years ago
4 0

Answer:

Step-by-step explanation:

hello :

let f this function

the roots of this function are : -1 , 0 ,6   so ;    f(x) = ax(x+1)(x-6)

now calculate : a  ....but this graph passes by : (1, -10)  means f(1) = -10

put : x=1   and  f(x) = -10

-10 = a(1)(1+1)(1-6)

-10a = -10    so : a= 1

conclusion :  

<h2> f(x) = x(x+1)(x-6)</h2>

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ABCD is a cyclic quadrilateral (∵ all the vertices of the quadrilateral are touching on the circle). As it is a cyclic quadrilateral , sum of it's opposite angles will be 180°.

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Using angle sum property of triangle ,

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⇒ x = 180 - 80 = 100°

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3 years ago
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