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If f(x) = 2x − 7 and g(x) = x + 5, what is the value of (f + g)(3)?यदि f(x) = 2x − 7 और g(x) = x + 5 हों, तो (f + g)(3) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 77
The sum of two functions is defined by (f + g)(x) = f(x) + g(x). At x = 3, f(3) = 2(3) − 7 = −1 and g(3) = 3 + 5 = 8. Therefore, (f + g)(3) = −1 + 8 = 7.दो फलनों का योग (f + g)(x) = f(x) + g(x) से परिभाषित होता है। x = 3 रखने पर f(3) = 2(3) − 7 = −1 और g(3) = 3 + 5 = 8 मिलता है। इसलिए (f + g)(3) = −1 + 8 = 7।
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