Question
Fri January 20, 2012 By:
1.lt x-(tends to)6   2sin2(2is square)x + sinx-1/2sin2(2 is square)x-3sinx+1
2.lt x-(tends to)pi/6   root of3sinx-cos x/x-pi/6 (root is only for 3 )
 

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Expert Reply
Fri January 20, 2012
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On differentiating tan(x3+2x+5),we get Sec2(x3+2x+5)X(3x2+2)
Also,on differentiating sec7x,we get 7sec6x(secx.tanx)=7 sec7xtanx
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