a) sec2x tanx (2 tanx+secx+3)
b) 2 sec2x tanx (2 tanx-secx+3)
c) 2 sec2x tanx (2 tanx+secx+3)
d) 2 sec2x tanx (2 tanx+secx-3)
Find \(\frac{d^2y}{dx^2}\), if y=tan2x+3 tanx.
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answerhappygod
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Find \(\frac{d^2y}{dx^2}\), if y=tan2x+3 tanx.
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