13. For which integer n is 28 + 101 + 2" a perfect square?
(A) 11
(B) 12
(C) 13
(D) 14
Answers
Answered by
3
Answer:
Step-by-step explanation:
BRAINLIEST BRAINLIEST BRAINLIEST
n = 12.
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shrushtti:
sorry but how do I know tht I have to first try with 12 only
U dont have to try 12 first. U try 11 first and you will see that u dont get a perfect square, then you keep trying
ohkk
BRAINLIEST if you can
sure
thks. ask anytime för help
have uploaded a few
pl help
Answered by
1
well, question seems to be incorrect, I mean when we add these numbers it's 131 and clearly there is no perfect square root of it. perhaps they have mistakenly replaced 18 with 28. as only in that case, it will be a perfect square. please check the question again, if answer is 11 then definitely it's a mistake.
the no.is 2^n
and we have to find n
the other person has answered correct but he hasn't given the explanation tht how 12 came.... cause in exam how will I get to know
that does mean, last expression in 2^n then. I couldn't understand that. just click the question and post it, it makes things easier to understand especially the mathematical expression.
can u explain here
see these kind of question can be solved through logarithm. but it won't be wise to use that. this can be easily solved through option.
that's true and to say the truth I also dont know logarithm.
hey got the ans... pl help with the few uploaded questions
here in given circumstances, if we go through option, it will hardly take few second. but if someone solve it by logarithm or graph, it will be great deal of complexity and time consuming as well. so it's good to know the concept, I appreciate that, but sometimes it's better just to explore this check and reject option .
that true saying!!
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