1
answer
0
watching
208
views
13 Mar 2020
Reduction Formulas. A reduction formula is one that can be used to “reduce” the number of terms in the input for a trigonometric function. Explain how the figure shows that the following reduction formulas are valid:
Reduction Formulas. A reduction formula is one that can be used to “reduce” the number of terms in the input for a trigonometric function. Explain how the figure shows that the following reduction formulas are valid:
Collen VonLv2
24 May 2020
and 
in the figure to the right are congruent. Explain how this proves that if 
has coordinates 
, then 
has coordinates 
. Then explain how the figure shows that the following reduction formulas are valid:
of fencing and wants to fence off a rectangular field that borders a straight river. He does not need a fence along the river (see the figure). What are the dimensions of the field of largest area that he can fence?
is equal to the length of a line segment in the figure. For instance, 
, since from 
we see that
, segment 
is tangent to the circle at
, and 
is a right angle.]