sin4 −cos4
sin2 −cos2
= ________________
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Answered by
0
Answer:
sin4 −cos4
sin2 −cos2
0.37818
Answered by
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Step-by-step explanation:
sin (90-4) - cos 4
sin(90-2) - cos4
=. cos86 - cos4
cos88-cos 2
=. 1
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