Answer Happy

Posted: **Wed Jul 13, 2022 8:07 pm**

a) sec2⁡⁡x tan⁡x (2 tan⁡x+sec⁡x+3)
b) 2 sec2⁡⁡x tan⁡x (2 tan⁡x-sec⁡x+3)
c) 2 sec2⁡⁡x tan⁡x (2 tan⁡x+sec⁡x+3)
d) 2 sec2⁡⁡x tan⁡x (2 tan⁡x+sec⁡x-3)

Find \(\frac{d^2y}{dx^2}\), if y=tan2⁡x+3 tan⁡x.