Teaching DSSSB PGT Mock Test 2025 Mathematics Relations and Functions Composition of Functions

यदि f(x) = 2x + 7 और g(x) = x2 + 7, x ∈ R है, तो x का वह मान क्या है जिससे लिए f ∘ g(x) = 25 है?

1
-1, 1
2
-2, 2
3
\(-\sqrt{2}, \sqrt{2}\)
4
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