Math, asked by amoori3894, 1 year ago

यदि f: R→R, f(x) = (3-x3)⅓ , द्वारा प्रदत्त है, तो fof(x) बराबर हेै।
(A) x1/3 (B) x3 (C) x (D) (3-x3)

Answers

Answered by kaushalinspire
0

Answer:

Step-by-step explanation:

f: R→R, f(x) = (3-x3)⅓

(fof)(x)=f(f(x))\\\\=f((3-x^3)^{\frac{1}{3} })\\\\=[3-\{(3-x^3)^{\frac{1}{3}}\}^3]^{\frac{1}{3}}\\  \\=[3-(3-x^3)]^{\frac{1}{3} }\\\\=(x^3)^{\frac{1}{3} }\\\\=x

अतः  (C) सही उत्तर होगा।

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