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SOVA2 [1]
3 years ago
12

Find sin^4(a) + cos^4(a), if cos(a) + sin(a) = 1/3

Mathematics
1 answer:
zimovet [89]3 years ago
3 0
Answer is 49/81, or (7/9)²
step by step in the pic below

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Good morning,

Answer:

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