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If y = tan x tan 2x tan 3x, (sin 12x != ...

If `y = tan x tan 2x tan 3x, (sin 12x != 0)` then `dy / dx` has the value equal to

A

`3sec^(2)3xtanx tan2x+sec^(2)x tan2xtan3x+2sec^(2)2xtan3xtanx`

B

`2y(cosec 2x+2 cosec 4x+3cosec6x)`

C

`3sec^(2)3x-2sec^(2)2x-sec^(2)x`

D

`sec^(2)x+2sec^(2)2x+3sec^(2)3x`

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The correct Answer is:
A, B, C
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ARIHANT MATHS-DIFFERENTIATION -Exercise (More Than One Correct Option Type Questions)
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  20. If y = tan x tan 2x tan 3x, (sin 12x != 0) then dy / dx has the value ...

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