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Find dy over dx in terms of x and y if cos to the power 2 braket 6yclose bracket plus sin to the power to open bracket 6y close bracket equals y plus 14?
Nathalieolcese
Note : sin² Φ + cos² Φ = 1 for all real Φ.
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Now, given that : cos² (6y) + sin² (6y) = y + 14
∴ 1 = y + 14 ∴differentiating w.r.t. x, ... 0 = (dy/dx) + 0
∴ dy/dx = 0 ........... Ans.___________________________________
Happy To Help !
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∙ 12y ago
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