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AP EAMCET · Maths · Differentiation

If y=(logcotxtanx)(logtanxcotx)+tan-14x4-x2, then dydx=

  1. A 14+x2
  2. B 44+x2
  3. C 14-x2
  4. D 44-x2
Verified Solution

Answer & Solution

Correct Answer

(B) 44+x2

Step-by-step Solution

Detailed explanation

y=(logcotxtanx)(logtanxcotx)+tan-14x4-x2 y=logtanxlogcotxlogcotxlogtanx+tan-14x4-x2 y=1+tan-14x4-x2 y'=0+ddxtan-14x4-x2 =11+4x4-x22ddx4x4-x2 =11+16x216-8x2+x44-x24-4x-2x4-x22 =44+x2