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Question Number 116529 by mr W last updated on 04/Oct/20

Commented by MJS_new last updated on 04/Oct/20

$$\frac{5}{197}$$

Answered by maths mind last updated on 05/Oct/20

$$x^4+4=(x^2-2x+2)(x^2+2x+2)$$$$=({(x-1)}^2+1)({(x+1)}^2+1)$$$$=\frac{({\left(2\right)}^2+1)(4^2+1)(6^2+1)(8^2+1)({10}^2+1)({12}^2+1)}{(4^2+1)(6^2+1)(8^2+1)({10}^2+1)({12}^2+1)({14}^2+1)}$$$$=\frac{5}{197}$$

Commented by mr W last updated on 05/Oct/20

$$great!$$

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