Question
Download Solution PDFযদি f(x) = |x + 1| + |x + 10| হয়, তাহলে f(x) এর সর্বনিম্ন মান নির্ণয় করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFগণনা:
f(x) = |x + 1| + |x + 10|
|x + 1| = 0 তাহলে x = -1
|x + 10| = 0 তাহলে x = -10
f(x) শূন্য হতে পারে যখন x = -1 বা x = -10
f(-1) = |-1 + 1| + |-1 + 10| =9
f(-10) = |-10 + 1| + |-10 + 10| =9
∴ f(x) এর ন্যূনতম মান = 9 এ x = -1 বা x = -10
Important Points
যদি f(x) = |x + a| + |x + b| হয়, তাহলে
|x + a| এবং |x + b| = 0
তারা পৃথকভাবে শূন্য হতে পারে কিন্তু একই সময়ে শূন্য হতে পারে না।
Last updated on Jun 17, 2025
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