Quadratic formula:
What do we have:
a=4
b=-10
c=5
Substitude:
Solve:
Cancel the common terms:
If cos x cos (pi/7)+sin x sin(pi/7)=-(sqrt 2)/2,then x can equal
1 answer:
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Answer:
9√3in^2 hope this helps. found an answer...
Given:
A student says that the graph of the equation is the same as the graph of
, only translated upwards by 8 units.
To find:
Whether the student is correct or not.
Solution:
Initial equation is
Equation of after transformation is
Now,
...(i)
The translation is defined as
...(ii)
Where, a is horizontal shift and b is vertical shift.
If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.
If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.
From (i) and (ii), we get
Therefore, the graph of translated left by 8 units. Hence, the student is wrong.