Write weather for simplification:
2√ 45+3√20
__________ gives a rational or an irrational number.
2√5
Answers
Answered by
1
here is your answer dear ,
_______________
because 2√45=2√3*3*5 and 3√20=3√2*2*5
2√45+3√20 = 6√5+6√5
=12√5
which is an irrational no.
_______________
_______________
because 2√45=2√3*3*5 and 3√20=3√2*2*5
2√45+3√20 = 6√5+6√5
=12√5
which is an irrational no.
_______________
warrior10:
wrong answer it is
see my solution
yes it is but thank for answer
Hi prateek solve this problem
4/5+9
Answered by
3
it gives the rational number .
hope it helps you
hope it helps you
Attachments:
why not mine correct
it is LCM
because your method is wrong
sorry ,no i am not dear , just explain me why 2√5 came in denominator
oh !
what i have done below some steps take out the lcm you will get 2√5
ok ! but whg LCM is needed , if we can convert both in same manner
in same √5 variable
ok whatever , sorry for irritating you dear , bye
by
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