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wanna compelete solution....................... ... ......... .................................................

Medical Student , 6 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 6 Years ago

Dear student
 
for finding angle we use dot product
 
A . B = 8 + 18 + 2 = |A| |B| cos @
 
28 = sqrt (14) * sqrt (56) cos@
 
28 / 14 *2 = cos@
 
cos@ = 1
 
@ = 0 degree

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