Greatest value of Sin

^{4}Θ + cos^{4}Θ is-
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Greatest value of Sin^{4}Θ + cos^{4}Θ is

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## Comments

^{4}= 1/2^{4}+ 0^{4}= 1^{3}ΘcosΘ - 4cos^{3}ΘsinΘ= 0