21. If f(a)= 2, f'(a)= 1, g(a)=-1, g'(a) = 2, then lim 8(x) f(a) – g(a) f(x) is is equal to x+a x-a (a) 3 (c)-3 (b) 5 (d)0 is the

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So coed- Letworited [ begin{array}{l}text { It } g^{prime}(q) cdot f(q)-g(a) cdot f^{prime}(a) text { nas a }end{array} ] ( begin{aligned}=& 2 times 2-(-1) times 1 =& 4+1=5(5) text { Ams } end{aligned} )

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