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What is the real domain of (f(x)=\sqrt{3+x})?फलन (f(x)=\sqrt{3+x}) का वास्तविक प्रान्त कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ([-3,\infty))([-3,\infty))
Step 1: For the square root, (3+x\ge 0) is needed. Step 2: This gives (x\ge -3). Step 3: Therefore the domain is ([-3,\infty)).चरण 1: वर्गमूल के लिए (3+x\ge 0) होना चाहिए। चरण 2: इससे (x\ge -3) मिलता है। चरण 3: इसलिए प्रान्त ([-3,\infty)) है।
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