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The number of integral values of a for w...

The number of integral values of a for which the system of linear equations ` x sin theta -2 y cos theta -az=0`, `x+2y+z=0,-x+y+z=0` may have non-trivial solutions, then

A

at a=2 the given system will have finite solutions for ` theta in R `

B

number of possible integral values of a is 3

C

for a=1 the sytem will have finite solutions

D

for a=3 the sytem will have unique solution

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The correct Answer is:
B, C, D
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