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just olya [345]
2 years ago
7

Giải phương trình nghiệm nguyên 14x+26y-714=0

Mathematics
1 answer:
lesya [120]2 years ago
5 0

Answer:

7

Step-by-step explanation:

bc

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We know that : 1 - sin²x = cos²x

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\implies \sf{3tanx + 7 = 2sec^2x}

We know that : sec²x = 1 + tan²x

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