solve the following trigonometry identities sin power 4 minus Cos raise to power 4 is equal to sin square minus cos square
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Step-by-step explanation:
sin power 4 - cos power 4 = (sin power2 - cos power 2)(sin power 2+ cos power 2)
=> (sin power 2 - cos power 2)(1)
=> sin power 2 - cos power 2
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