Two easy Math task with deduction?

Mathematics
Tutor: None Selected Time limit: 1 Day

Please deduct it and tell me how you got the answer. Thank you in advance!

347:http://i57.tinypic.com/28tl408.jpg

350: http://i61.tinypic.com/105nomg.jpg

Oct 5th, 2015

Hello!

347: sqrt[sqrt(41) + 4sqrt(2)] * sqrt[sqrt(41) - sqrt(32)] = 

sqrt[(sqrt(41) + sqrt(32)) * (sqrt(41) - sqrt(32)) =

sqrt(41 - 32) = sqrt(9) = 3.


350: [sqrt(12 + sqrt(23)) + sqrt(12 - sqrt(23))]^2 = 

(12 + sqrt(23)) + (12 - sqrt(23)) + 2*sqrt[(12 + sqrt(23))*(12 - sqrt(23))] = 

24 + 2*sqrt[12^2 - 23] = 24 + 2*sqrt(121) = 24 + 2*11 = 24 + 22 = 46.


please post pictures directly if possible (there is the button on the toolbar)

Please ask if something is unclear.
Oct 5th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 5th, 2015
...
Oct 5th, 2015
Mar 30th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer