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Let L be the line of intersection of pla...

Let L be the line of intersection of planes `vec(r).(hat(i) - hat(j) + 2hat(k)) = 2` and `vec(r).(2hat(i) + hat(j) - hat(k)) = 2`. If `P(alpha, beta, gamma)` is the foot of perpendicular on L from the point (1,2,0), then the value of `35(alpha + beta + gamma)` is equal to :

A

101

B

119

C

143

D

134

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JEE MAINS PREVIOUS YEAR-JEE MAINS 2021-MATHEMATICS (SECTION-A)
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