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sin(t)=cos(pi/2-t)
The identity
is easily proved by forming a rectangle using two identical right triangles. This Demonstration compares the curves
and
. The curves align when
.
Contributed by:
Jon Perry
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RELATED LINKS
Cosine
(
Wolfram
MathWorld
)
Sine
(
Wolfram
MathWorld
)
SOHCAHTOA
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
sin(t)=cos(pi/2-t)
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/SinTCosPi2T/
Contributed by:
Jon Perry
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Related Curriculum Standards
US Common Core State Standards, Mathematics
HSF-BF.B.3
HSF-IF.C.7
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