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g(x) = x2 + x - 1 మరియు (gof)(x) = 4x2 - 10x + 5 అయితే, విలువ ఎంత?

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Option 2 :

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వివరణ -

g(x) = x2 + x - 1

gof(x) = 4x2 - 10x + 5

g(f(x) = 4x2 - 10x + 5

f2(x) + f(x) - 1 = 4x2 - 10x + 5

x = 5/4 మరియు f(5/4) = t అని అనుకుందాం

t = -1/2 లేదా f(5/4) = -1/2

కాబట్టి ఎంపిక (2) సరైనది.

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