1.

Acute angle between the line (x-5)/2=(y+1)/-1=(z+4)/1 and the plane 3x-4y-z+5=0 is

Answer»

1)`COS^(-1)(5/(2sqrt13))`
2)`cos^(-1)(9/(sqrt364))`
3)`sin^(-1)(6/(2sqrt13))`
4)`sin^(-1)((9.)/(sqrt364))`

ANSWER :A


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