zonic-the-hedgehog-2
zonic-the-hedgehog-2
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tgx = 4/5 , x ∈ I We have : 1/cos²x = tg²x + 1 <=> 1/cos²x = (4/5)² + 1 = 41/25 <=> cos²x = 25/41 <=> cosx = 5√41 / 41 => tgx = senx/cosx <=> tgx . cosx = senx <=> 4/5 . 5√41 / 41 = 4√41 /…
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tgx = 4/5 , x ∈ I We have : 1/cos²x = tg²x + 1 <=> 1/cos²x = (4/5)² + 1 = 41/25 <=> cos²x = 25/41 <=> cosx = 5√41 / 41 => tgx = senx/cosx <=> tgx . cosx = senx <=> 4/5 . 5√41 / 41 = 4√41 /…
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tgx = 4/5 , x ∈ I We have : 1/cos²x = tg²x + 1 <=> 1/cos²x = (4/5)² + 1 = 41/25 <=> cos²x = 25/41 <=> cosx = 5√41 / 41 => tgx = senx/cosx <=> tgx . cosx = senx <=> 4/5 . 5√41 / 41 = 4√41 /…