If x-y=9 and xy=2,find the value of (x square + y square)
1 answer:
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Answer:
Option The area is increased by a factor of
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its areas is equal to scale factor squared
Let
z-----> the scale factor
x------> the area of the dilated rectangle
y------> the area of the original rectangle
we have
------> is an enlargement
so
substitute
therefore
The area is increased by a factor of
Answer:
a) ,
,
,
, b)
,
,
,
Step-by-step explanation:
a) The equation must be rearranged into a form with one fundamental trigonometric function first:
Value of x is contained in the following sets of solutions:
,
,
b) The equation must be simplified first:
Value of x is contained in the following sets of solutions:
,
,