Subject
Bank Exam
Topic
Joint Recruitment Test for 7 Banks and Financial Institutions - (Senior Officers) - 05.11.2021
If a = √2+1 and b = √2-1, then the value of 1/(a+1) + 1/(b+1) is-
If a = √2+1 and b = √2-1, then the value of 1/(a+1) + 1/(b+1) is-
খ)
1গ)
2ঘ)
2√2Explanation
দেওয়া আছে, 1/(a+1) + 1/(b+1) = 1/(√2+1+1) + 1/(√2-1+1) = 1/(√2+2) + 1/√2 = (√2+√2+2)/√2(√2+2) = (2√2+2)/(2+2√2) = (2+2√2)/(2+2√2) = 1Related questions
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