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Review Test on Analyzing Data
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Attempt following question by selecting a choice to answer.
c
In
ΔDEF
if
∠
E = 90°,
then find the value of
sin 2D.
BBBB cccc
A.
c
d
2
e
2
B.
c
2
f
e
C.
c
2
d
e
D.
c
2
d
f
e
2
cc
D
View Solution Steps
Step 1: sin 2D = 2
(
d
e
)
(
f
e
)
=
2
d
f
e
2
[Use sin 2D = 2sin D cos D.]