Physics, asked by Ananyasaxena, 1 year ago

how to solve cos©=8/10

Answers

Answered by poorvitha1231

I think like this
cos c =8/10
cos c =4/5
c=37

poorvitha1231: but we got in our book

vishagh: Yeah i chck it,its ryt

poorvitha1231: who's ans is correct frnd

vishagh: Well, im sure abt tht... But ur answer seems more ligitimate.,but the question cant be soo easy though u cant just remember the whole trigonometric value ryt.??.??

poorvitha1231: ok

Anonymous: poorvitha's answer is more correct when u reach higher class u will learn this

vishagh: Ohk...thnx

Anonymous: :-)

vishagh: Get well soon...bye

Anonymous: thanks....bye

Answered by vishagh

Cos©=8/10
Since the value is -pi to pi
©=cos-1(8/10)
©=cos-1(4/5)= 0.13072872417( using log)

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