两道AP微积分题，知道的亲们请帮忙回答一下，求详解~~！ 5
1Ify=(x^2+1)^1/2,thenthederivativeofy^2withrespecttox^2is?（答案是1，为什么？）2Iffisdifferenti...
1 If y=(x^2+1)^1/2, then the derivative of y^2 with respect to x^2 is ?
（答案是1，为什么？）
2 If f is differentiable and difference quotients overestimate the slope of f at x=a for all h>0,which must true?
A f'(a)>0 B f'(a)<0 C f''(a)>0 D f''(a)<0 E none of these 展开
（答案是1，为什么？）
2 If f is differentiable and difference quotients overestimate the slope of f at x=a for all h>0,which must true?
A f'(a)>0 B f'(a)<0 C f''(a)>0 D f''(a)<0 E none of these 展开
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1：y=(x^2+1)^1/2=(1+2)ctg2-2gki3-1\2oik9+∫3frt5=1
2:f'(a)=(a)kioki(a)-da=0 f"(a)=a-9ijia=0
2:f'(a)=(a)kioki(a)-da=0 f"(a)=a-9ijia=0
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