यदि \(x^2-10x+m=0\) की दोनों जड़ें अभाज्य संख्याएँ हैं, तो (m) के संभव मानों का योग क्या है?
If both roots of \(x^2-10x+m=0\) are prime numbers, what is the sum of possible values of (m)?
Explanation opens after your attempt
A. (42)
Concept
The prime pairs with sum (10) are ((3,7)) and ((5,5)). Hence (m=21) or (m=25), and their sum is (46), so option (B) should be correct.
Why this answer is correct
The correct answer is A. (42). The prime pairs with sum (10) are ((3,7)) and ((5,5)). Hence (m=21) or (m=25), and their sum is (46), so option (B) should be correct.
Exam Tip
योग (10) वाली अभाज्य जोड़ियाँ ((3,7)) और ((5,5)) हैं। इसलिए (m=21) या (m=25), और योग (46) है, अतः विकल्प (B) सही होना चाहिए।
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