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यदि दो रेखाएँ l(1)=(x-2)/(3)=(y+1)/(-2),...

यदि दो रेखाएँ `l_(1)=(x-2)/(3)=(y+1)/(-2), z =2` तथा `l_(2)=(x-1)/(1)=(2y+3)/(alpha)=(z+5)/(2)` लंबवत है, तो रेखा `l_(2)` तथा `l_(3)=(1-x)/(3)=(2y-1)/(-4)= (z)/(4)` के बीच एक कोण है:

A

`cos^(-1)((29)/(4))`

B

`sec^(-1) ((29)/(4))`

C

`cos^(-1)((2)/(29))`

D

`cos^(-1)((2)/(sqrt(29)))`

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