Question

find the direction cosines for the vector a = 4 i+6j -5k.​

Answer 1

$\huge\boxed{\fcolorbox{red}{ink}{Answer}}$

$\huge\boxed{\fcolorbox{purple}{ink}{GIVEN:}}$

$â=4 î+6j-5k$

$\huge\boxed{\dag\sf\red{THEREFORE}\dag}$

The direction ratio of the vector are 4,6,-5

The direction cosines are

$\frac{4}{ \sqrt{ {4}^{2} + {6}^{2} + {5}^{2} } }$$,\frac{6}{ \sqrt{77} } , \frac{5}{ \sqrt{77} }$

$➭ \frac{ + }{ } \frac{4}{8.77} \: \frac{ + }{} \frac{6}{8.77}$

Answer 2

$\huge\rm\underline\blue{Answer}$

$\rm \underline \red{refer \: the \: attachment}$

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